This August 2016 image provided by TheLantern.com shows Abdul Razak Ali Artan in Columbus, Ohio. Authorities identified Abdul Razak Ali Artan as the Somali-born Ohio State University student who plowed his car into a group of pedestrians on campus and then got out and began stabbing people with a knife Monday before he was shot to death by an officer. (Kevin Stankiewicz/TheLantern.com via AP) </s> (CNN) The Ohio State University student who carried out a knife attack on campus Monday said in a Facebook post he was "sick and tired" of seeing fellow Muslims "killed and tortured," according to federal law enforcement officials.

Investigators are examining Abdul Razak Ali Artan's Facebook page to determine whether the attack was terrorism, though law enforcement officials said it will take time to ascertain motive.

In a Facebook post shortly before the Monday morning rampage, the Somali immigrant urged America "to stop interfering with other countries, especially the Muslim Ummah," a term for Muslim people at large.

"By Allah, we will not let you sleep unless you give peace to the Muslims. You will not celebrate or enjoy any holiday."

Artan rammed his car into a group of people on the Columbus campus before exiting the car and charged at others with a knife. Eleven people were hospitalized as a result of the attack.

Ohio State Police Officer Alan Horujko shot Artan after he failed to obey orders to stop.

Authorities investigate the scene of the attack, where the assailant struck people with his vehicle and then cut them with a butcher knife.

In a news conference Monday, Ohio State President Dr. Michael V. Drake cautioned against jumping to conclusions when asked if the incident was terror-related or had anything to do with Ohio's Somali community, the second-largest in the country.

"We all know when things like this happen that there's a tendency sometimes for people to put people together and create other kinds of theories. We don't know anything that would link this to any community. We certainly don't have any evidence that would say that's the case," Drake said.

"What we want to do is really unify together and support each other; do our best to support those who were injured in their recovery, and then allow the investigation to take place."

What we know about the attacker

Artan was profiled in the school's student-run newspaper 's "Humans of Ohio State" series in August. He had just transferred from Columbus State and said he was struggling to find a place to pray in peace on the large campus.

"I wanted to pray in the open, but I was scared with everything going on in the media. I'm a Muslim, it's not what the media portrays me to be. If people look at me, a Muslim praying, I don't know what they're going to think, what's going to happen.

Abdul Razak Ali Artan

A community member who spoke to the attacker's family described them as shocked. The community member described Artan as a good kid. She confirmed Artan had just finished community college before starting this semester at Ohio State.

Artan was a legal permanent resident originally from Somalia, a US official said. He came to the country in 2014 with his family via Pakistan, a federal law enforcement official and a US official told CNN.

Artan left Somalia in 2007 with his family for Pakistan and they were admitted as refugees as part of a minority sect of Somalis, a senior administration official told CNN. Seven members of the family applied for refugee status in the United States and were admitted in 2014. Today, they are all legal permanent residents and green card holders.

Neighbor Stephanie Leper told CNN Artan's family occupies four units. Law enforcement vehicles arrived at the town homes sometime after 10 a.m. and took people away in "paddy wagons," she said.

Artan said reports of human rights abuses in Myanmar pushed him to a "boiling point." The United States, which suspended its last sanctions against the former military dictatorship this year, said it had expressed concerns about the treatment of Myanmar's Rohingya Muslims.

"I can't take it anymore," he said in the post.

How it happened

Artan's rampage ended in less than two minutes thanks to Officer Horujko's quick response, officials said.

"We owe him a debt of gratitude," said Monica Moll, director of Ohio State public safety. "He did a fabulous job today."

At 9:52 a.m., he drove over a curb and struck people near Watts Hall.

CNN Map

Horujko called in the car at 9:52 a.m. A few seconds later, he called in to say he had engaged with the suspect. At 9:53 a.m., he radioed in again to say he had shot the suspect.

Student Jacob Bower, 20, said he saw the attacker outside between the Koffolt Laboratories and Watts Hall.

"He pulled a large knife and started chasing people around, trying to attack them," Bower told CNN, adding that he did not see anyone get stabbed.

"Luckily there were so many people, he couldn't focus on one target," he said.

Cops putting up tape, wearing vests and grabbing their guns pic.twitter.com/dVmztKBeq6 — Anthony Falzarano (@_falzarano) November 28, 2016

It took Horujko three shots to take Artan down, Bower said.

"He waited 'til everyone was clear, and the stabber clearly wasn't stopping."

Throughout the attack, the assailant didn't yell or say anything, Bower said.

"He was completely silent, which was very creepy. Not even when he was shot," the student said.

"The cop that subdued the guy with the knife saved so many lives today."

Investigators used surveillance camera footage to track Artan's car before he arrived on campus, University Police Chief Craig Stone said. By tracing his movements, investigators were able to conclude he was alone in the vehicle and acted alone.

Gov. John Kasich praised the response, saying it showed "how much practice, how much training, how much expertise, how much coordination" existed among local law enforcement agencies.

"We are a strong, tough, resilient community," he said.

'Run, hide, fight'

Drake and others credited the school's active shooter training and the campus alert system for helping the community maintain order while the scene was secured. Ohio State's Columbus campus is one of the largest in the United States, with 59,482 registered students attending classes on the sprawling urban campus.

At 9:55 a.m., the school sent out a campus alert reporting an active shooter incident.

"Buckeye Alert: Active Shooter on campus. Run Hide Fight . Watts Hall. 19th and College," Ohio State Emergency Management tweeted at 9:56 a.m.

Buckeye Alert: Active Shooter on campus. Run Hide Fight. Watts Hall. 19th and College. — OSU Emergency Mngmnt (@OSU_EMFP) November 28, 2016

While students waited to hear word on the attacker's movements, some piled chairs against a door to block him from getting in.

Ohio State students barricade themselves to try to stay safe from the attacker.

"I'm safe in a barricaded room," Harrison Roth tweeted . "If you're on campus, get in a room and stay safe."

In 911 calls to police, several students described the chaotic scene.

"I think this is some type of terrorist attack," said one caller, according to CNN affiliate WCMH . "Because the guy ran a car through a crowd of students. The guy did it purposefully."

About 90 minutes after the first call came in, the lockdown was lifted, Drake said.

Students had just returned to class Monday after the Thanksgiving break -- and after the OSU football team's big win Saturday over the school's biggest rival, the University of Michigan.

Stay safe, Buckeyes. — Michigan Athletics (@UMichAthletics) November 28, 2016

Overall, it was "one of those days you're grateful for good training and great people across the board," Columbus Mayor Andrew Ginther said. </s> (CNN) Authorities believe the Ohio State University student responsible for Monday's attack on campus was inspired by terrorist propaganda from ISIS and deceased Yemeni-American cleric Anwar al-Awlaki, two law enforcement sources said.

The sources point to Abdul Razak Ali Artan 's Facebook posts before his short-lived rampage on the Columbus campus. The posts referenced Awlaki, who was a leader of al Qaeda in Yemen. Sources also notethe style of the attack was encouraged by ISIS in a recent online magazine.

Despite claims from the Islamic State's purported media wing that Artan was an ISIS soldier, there is no indication so far that Artan communicated with any terror group; evidence points to a lone wolf attack. Investigators are inspecting his computer and cell phone and talking to family and associates, as they try to determine what led him to act.

Artan bought knives on the day of the attack, a law enforcement official said.Artan rammed his car into a group of people on the Columbus campus and then got out and charged at passersby with a knife. Ohio State University Police Officer Alan Horujko shot Artan after he failed to obey orders to stop, killing him and stopping the attack.

Of the 11 people injured three remain hospitalized, Dr. Andrew Thomas said at a news conference Tuesday. Thomas is chief medical officer of the OSU Wexner Medical Center.

Authorities investigate the scene of the attack, where the assailant struck people with his vehicle and then cut them with a butcher knife.

Over almost as soon as it began

Classes resumed Tuesday as the campus community comes to grips with the incident.

One of the victims released Tuesday, Professor Emeritus William Clark, described the rapid escalation of events, which lasted less than two minutes from the moment when Artan drove up on the curb until he was shot.

Watts Hall had just been evacuated for a fire alarm before Artan drove up and crashed his car into a cement planter, accounting for the large group of people outside, Clark said.

As Artan's car was stopping it clipped the back of Clark's leg, sending him into the air before he landed on his back. He suffered deep cuts and bruises on his leg.

It all happened so fast that Clark said he barely noticed Artan. He declined to speculate on what motivated Artan without knowing him personally or the facts at hand.

"I'm only too aware of the things that drive students to do things they wouldn't normally do," he said.

"At the end of the day I'm sore and going home this afternoon and he's dead," he continued. "My sense, out of respect for the living and the dead, is we should wait to find out what the truth is."

Facebook posts yield clues

Artan left his native Somalia with his family in 2007. They arrived in the United States from Pakistan in 2014 as legal permanent residents and green card holders.

Abdul Razak Ali Artan

Artan had just transferred from Columbus State this semester. In August, Ohio State's student-run newspaper profiled Artan as part of its "Humans of Ohio State" series, in which he talked about his struggles to find a place to pray in peace on the large campus.

"I wanted to pray in the open, but I was scared with everything going on in the media," he told the newspaper.

Louann Carnahan, who lived next door to Artan, said she knew him and his family quite well and spoke to them every day. She described him as being very pleasant.

"I never expected any kind of behavior like that from him," she said. "I'm still beside myself that he was even capable of the acts that he did."

There were no visible changes in his behavior in the days leading up to the attack, she said.

In a Facebook post shortly before the rampage, the Somali immigrant said he was "sick and tired" of seeing fellow Muslims "killed and tortured," according to federal law enforcement officials.

He urged America "to stop interfering with other countries, especially the Muslim Ummah," a term for Muslim people at large.

"By Allah, we will not let you sleep unless you give peace to the Muslims," he wrote. "You will not celebrate or enjoy any holiday."

Artan said reports of human rights abuses in Myanmar pushed him to a "boiling point." The United States, which suspended its last sanctions against the former military dictatorship this year, said it had expressed concerns about the treatment of Myanmar's Rohingya Muslims.

"I can't take it anymore," he said in the post.

Three calls, three shots, one dead

Officer Horujko's quick response cut Artan's rampage short, officials said.

Horujko called in the car at 9:52 a.m. A few seconds later, he called again to say he had engaged with the suspect. At 9:53 a.m., he called a third time to say he had shot the suspect.

CNN Map

Student Logan Chapman, who was nearby at the time, said everyone thought it was an accident.

"So everyone was checking to make sure that the people who were hit were OK," he told CNN's "New Day." "As soon as everything had settled down, he got out of the car and started slashing people closest to the car with the knife."

Cops putting up tape, wearing vests and grabbing their guns pic.twitter.com/dVmztKBeq6 — Anthony Falzarano (@_falzarano) November 28, 2016

Investigators used surveillance camera footage to track Artan's car before he arrived on campus, University Police Chief Craig Stone said. By tracing his movements, investigators were able to conclude he was alone in the vehicle and acted alone.

Gov. John Kasich praised the response, saying it showed "how much practice, how much training, how much expertise, how much coordination" existed among local law enforcement agencies.

"We are a strong, tough, resilient community," he said.

'Run, hide, fight'

Ohio State President Dr. Michael V. Drake and others credited the school's active shooter training and the campus alert system for helping the community maintain order while the scene was secured. Ohio State's Columbus campus is one of the largest in the United States. Nearly 60,000 registered students attend classes on the sprawling urban campus.

At 9:55 a.m., three minutes after Horujko's first call, the school sent out a campus alert reporting an active shooter incident.

"Buckeye Alert: Active Shooter on campus. Run Hide Fight . Watts Hall. 19th and College," Ohio State Emergency Management tweeted at 9:56 a.m.

Buckeye Alert: Active Shooter on campus. Run Hide Fight. Watts Hall. 19th and College. — OSU Emergency Mngmnt (@OSU_EMFP) November 28, 2016

Some students piled chairs against a door to block him from getting in as they awaited word on the attacker's movements.

Ohio State University senior Mackenzie Bart and four other female students barricaded themselves into a room in the Derby Hall building on campus during the attack.

Students had just returned to class Monday after Thanksgiving break -- and after the Ohio State football team's big win Saturday over the school's biggest rival, the University of Michigan.

Stay safe, Buckeyes. — Michigan Athletics (@UMichAthletics) November 28, 2016

In a news conference Monday, Drake cautioned against jumping to conclusions when asked if the incident was terror-related or had anything to do with Ohio's Somali community, the second-largest in the country.

"What we want to do is really unify together and support each other; do our best to support those who were injured in their recovery, and then allow the investigation to take place." </s> A student drove a car into a crowd of pedestrians at Ohio State University on Monday morning and then jumped out and stabbed several people with a butcher knife, injuring 11 people, before a police officer shot and killed the attacker, officials said.

Abdul Razak Ali Artan was shot and killed within minutes after plowing into the group by a police officer with less than two years on the force, said Monica Moll, director of public safety for Ohio State University.

"It frankly took a piece out of everybody here at our beautiful Ohio State University that this could have happened here," Ohio Governor John Kasich said at a news conference.

A U.S. government official confirmed the assailant was from Somalia, 18 years old and a lawful permanent resident of the United States. A second government source said investigators had reason to believe the attacker at the campus in Columbus was a Somali refugee. Columbus, the state capital, has a large Somali population.

U.S. Congressman Adam Schiff, a California Democrat and the ranking member of the House Permanent Select Committee on Intelligence, said intelligence agencies were assisting in the investigation.

"It bears the all of the hallmarks of a terror attack carried out by someone who may have been self-radicalized," Schiff said in a statement.

Another U.S. official told Reuters U.S. agencies are investigating the Columbus attacker's background and motivations, but cannot clearly say yet whether he had any ties to suspected militant cells or groups.

The attack at the Columbus campus, which was initially reported by the university on Twitter as involving an "active shooter," drew a massive response of heavily armed police.

The suspect jumped the curb and used the vehicle to strike pedestrians in front of Watts Hall, Moll said.

The suspect left the vehicle armed with the knife and stabbed several others, Ohio State University Police Chief Craig Stone said.

"This was done on purpose," Stone said.

Less than 2 minutes elapsed between the first call for help at 9:52 a.m. local time and the shots fired by campus police officer Alan Horujko, 28, Moll said.

The incident follows a stabbing attack in September at the Crossroads Mall in St. Cloud, Minnesota, where a man whose family came to the United States from Somalia wounded 10 people with a knife before he was shot to death by an off-duty police officer.

Authorities last month indicated the Minnesota attacker showed signs of radicalization and a Federal Bureau of Investigation special agent said his actions appeared to be "consistent with the philosophies of violent radical Islamic groups."

One person was critically injured in Monday's incident, Columbus fire officials said. Eleven people were treated at area hospitals, including 10 taken by ambulance.

Ohio State University Wexner Medical Center treated six victims, said Dr. Andrew Thomas, the chief medical officer. They included two with stab wounds and three others who had injuries from being hit with the vehicle.

Two other hospitals received five patients, who suffered from lacerations and injuries caused by the vehicle, Thomas said.

With nearly 60,000 students, the Columbus campus is the state's flagship public university.

CNN aired an image from a room at the university where students had barricaded a door with stacked chairs.

Columbus and university police continued their investigation with assistance from the FBI. The attack prompted university officials to warn students on Twitter to shelter in place.

The university campus remained open, although classes were canceled for the day.

President Barack Obama was briefed on the incident by Lisa Monaco, his homeland security adviser, said White House spokesman Josh Earnest. (Reporting by Kim Palmer in Cleveland, Laila Kearney and Franklin Paul in New York, Mark Hosenball and Ayesha Rascoe in Washington and Sharon Bernstein in Sacramento, Calif.; Writing by Alex Dobuzinskis and Sharon Bernstein; Editing by Jeffrey Benkoe and Matthew Lewis) </s> COLUMBUS (AP) — A Somali-born student who carried out a car-and-knife attack at Ohio State University stewed over the treatment of Muslims while apparently staying under the radar of federal law enforcement, underscoring the difficulty authorities face in identifying and stopping lone wolves bent on violence.

Abdul Razak Ali Artan was not known to FBI counterterrorism authorities before Monday’s rampage, which ended with him shot to death by police and 11 people injured, a law enforcement official told The Associated Press.

That’s in contrast to several other recent attacks, including those in New York City; Orlando, Florida; and Garland, Texas, in which those blamed for the violence had previously come to the attention of federal agents.

Law enforcement officials have not identified a motive for the Ohio State violence but have suggested terrorism as a possibility. FBI agents continued to search Artan’s apartment for clues, but California U.S. Rep. Adam Schiff, the top Democrat on the House Intelligence Committee, said he had seen no evidence Artan was directed by or was in communication with any overseas terror organization.

The mode of attack — plowing a car into civilians, then slashing victims with a butcher knife — was in keeping with the recommended tactics of jihadist propaganda. And Facebook posts that were apparently written shortly before the attack and came to light afterward show Artan nursed grievances against the U.S.

He railed against U.S. intervention in Muslim lands and warned, “If you want us Muslims to stop carrying lone wolf attacks, then make peace” with the Islamic State group.

“America! Stop interfering with other countries, especially the Muslim Ummah. We are not weak. We are not weak, remember that,” he wrote, using the Arabic term for the world’s Muslim community.

He also warned that other Muslims are in sleeper cells, “waiting for a signal. I am warning you Oh America!”

The posts were recounted by a law enforcement official who was briefed on the investigation but wasn’t authorized to discuss it publicly and spoke on the condition of anonymity.

On Tuesday, a self-described Islamic State news agency called Artan “a soldier of the Islamic State” who “carried out the operation in response to calls to target citizens of international coalition countries.” The Islamic State group has described other attackers around the world as its “soldiers” without specifically claiming to have organized the acts of violence.

Artan’s social media rants seemed at odds with the portrait of the young man painted by neighbors and acquaintances.

Jack Ouham, owner of a market near the home on the outskirts of Columbus where Artan lived with his parents and siblings, saw him almost every day when he stopped in for snacks but never alcohol or cigarettes.

He was never angry, Ouham said.

Artan graduated with honors from Columbus State Community College last May, earning an associate of arts degree. A video of his graduation ceremony shows him jumping and spinning on stage and smiling broadly, drawing laughs, cheers and smiles from graduates and faculty members.

The school said he had no behavioral or disciplinary problems while he was there from the fall of 2014 until this past summer.

He started at Ohio State in August as a business student studying logistics management.

A law enforcement official said Artan came to the U.S. in 2014 as the child of a refugee. Artan had been living in Pakistan from 2007 to 2014. It’s not uncommon for refugees to go to a third-party country before being permanently resettled.

Federal and local authorities have been grappling with the pervasiveness of Islamic State group propaganda. FBI Director James Comey said in May that there were “north of 1,000” cases in which agents were trying to evaluate a subject’s level of radicalization and potential for violence.

Authorities will no doubt look to see if they missed any red flags that could have placed Artan under investigation.

Several acts of jihadist-inspired violence in the past two years have involved people known to the FBI.

The FBI investigated Omar Mateen, the gunman in the Orlando nightclub attack in June, for 10 months in 2013 after he boasted of mutual acquaintances with the Boston Marathon bombers and said things to co-workers that suggested he had radical, violent intentions. Agents found nothing to justify continued scrutiny and closed the matter but looked into him again the next year as part of a separate investigation into a suicide bomber who attended the same Florida mosque.

Federal authorities in 2014 looked into Ahmad Khan Rahimi after he was accused of stabbing a relative and his father expressed concerns he might be a terrorist. The FBI said it found nothing tying Rahimi to terrorism and closed its review. Rahimi was charged with setting off bombs in New York and New Jersey in September; he has pleaded not guilty.

FBI counterterrorism authorities have a “number of trip wires” set up to spot would-be jihadists and have a generally good sense of people who are drawn to terrorist propaganda, which is why many who have gone on to commit violence had come under scrutiny, said Seamus Hughes, deputy director of the George Washington University’s Program on Extremism.

“If you look at most quote-unquote successful terror attacks in the U.S. … they’ve always had some touch point with law enforcement and been on law enforcement’s radar in some point in their radical trajectory,” Hughes said.

Classes for the 60,000 students at Ohio State were canceled after the attack but resumed Tuesday. Several hundred students gathered on campus Tuesday night for a vigil intended to help in the healing process.

FILE - This August 2016 file photo provided by TheLantern.com shows Abdul Razak Ali Artan in Columbus, Ohio. Authorities identified Artan as the Somali-born Ohio State University student who plowed his car into a group of pedestrians on campus and then got out and began stabbing people with a knife Monday, Nov. 28, 2016, before he was shot to death by an officer. The attack employed methods Islamic State extremists have suggested in a slick new online magazine. It isn't clear whether Artan ever saw or heard about the magazine's instructions, but in a Facebook post made before the attack, he said that if the U.S. wanted Muslims to stop carrying out "lone wolf attacks," it should make peace with the Islamic State group. The posts were recounted by a law enforcement official who was briefed on the investigation but wasn't authorized to discuss it publicly and spoke to The Associated Press on condition of anonymity. (Kevin Stankiewicz/TheLantern.com via AP, File) FILE - This August 2016 file photo provided by TheLantern.com shows Abdul Razak Ali Artan in Columbus, Ohio. Authorities identified Artan as the Somali-born Ohio State University student who plowed his car into a group of pedestrians on campus and then got out and began stabbing people with a knife Monday, Nov. 28, 2016, before he was shot to death by an officer. The attack employed methods Islamic State extremists have suggested in a slick new online magazine. It isn't clear whether Artan ever saw or heard about the magazine's instructions, but in a Facebook post made before the attack, he said that if the U.S. wanted Muslims to stop carrying out "lone wolf attacks," it should make peace with the Islamic State group. The posts were recounted by a law enforcement official who was briefed on the investigation but wasn't authorized to discuss it publicly and spoke to The Associated Press on condition of anonymity. (Kevin Stankiewicz/TheLantern.com via AP, File) Ohio State University Professor William Clark wipes a tear from his eye during a news conference, Tuesday, Nov. 29, 2016, as he speaks of the police officer Alan Horujko who intervened during an attack at on campus the previous day in Columbus, Ohio. Investigators are looking into whether a car-and-knife attack at Ohio State University that injured several people was an act of terror by a student who had once criticized the media for its portrayal of Muslims. (AP Photo/John Minchillo) Ohio State University Professor William Clark wipes a tear from his eye during a news conference, Tuesday, Nov. 29, 2016, as he speaks of the police officer Alan Horujko who intervened during an attack at on campus the previous day in Columbus, Ohio. Investigators are looking into whether a car-and-knife attack at Ohio State University that injured several people was an act of terror by a student who had once criticized the media for its portrayal of Muslims. (AP Photo/John Minchillo) In this Monday file photo, crime scene investigators collect evidence from the pavement as police respond to an attack on campus at Ohio State University, in Columbus. In chillingly detailed articles in a slick online magazine, Islamic State extremists exhorted English-language readers this fall to carry out attacks with knives and vehicles. Using those very methods, Somali-born student Abdul Razak Ali Artan injured multiple people in the attack at Ohio State University, authorities say. It isn’t clear whether Artan ever saw or heard about the magazine’s instructions, but in a Facebook post made before the attack, he said that if the U.S. wanted Muslims to stop carrying out “lone wolf attacks,” it should make peace with the Islamic State group. The posts were recounted by a law enforcement official who was briefed on the investigation but wasn’t authorized to discuss it publicly and spoke to The Associated Press on condition of anonymity. In this Monday file photo, crime scene investigators collect evidence from the pavement as police respond to an attack on campus at Ohio State University, in Columbus. In chillingly detailed articles in a slick online magazine, Islamic State extremists exhorted English-language readers this fall to carry out attacks with knives and vehicles. Using those very methods, Somali-born student Abdul Razak Ali Artan injured multiple people in the attack at Ohio State University, authorities say. It isn’t clear whether Artan ever saw or heard about the magazine’s instructions, but in a Facebook post made before the attack, he said that if the U.S. wanted Muslims to stop carrying out “lone wolf attacks,” it should make peace with the Islamic State group. The posts were recounted by a law enforcement official who was briefed on the investigation but wasn’t authorized to discuss it publicly and spoke to The Associated Press on condition of anonymity.

Tucker and Abdollah reported from Washington. Associated Press writers Alicia A. Caldwell in Washington; Dan Sewell in Cincinnati; John Seewer in Toledo, Ohio; Collin Binkley in Boston; and Mark Gillispie in Cleveland contributed to this story, along with AP Dubai correspondent Jon Gambrell. </s> Attacker who wounded 11 at Ohio State University was a student

The man who drove a car into a crowd of students at Ohio State University on Monday and then attacked bystanders with a butcher knife, injuring at least 11, has been identified as a student at the university.

The suspect, Abdul Razak Ali Artan, who authorities said was about 20 years old, was shot and killed by a university police officer who arrived and brought down the attacker within a minute, officials said.

“This happened right before his eyes,” campus Police Chief Craig Stone said of Officer Alan Horujko, 28, who had been in the area on another call.

In a previous news conference, Stone said Artan had not “followed” the officer’s commands, and “the officer did what he had to do to end the threat.” Local officials have not suggested a motive for Artan’s actions, and Ohio Gov. John Kasich urged caution while the investigation unfolds.

“It’s our job to let the investigation take its due course, and at the end of the day we’ll find out what happened,” Kasich said. “We may never find out (why), but we’re going to have a lot more information. … Right now we have to have patience.”

After receiving a briefing on the attack, U.S. Rep. Adam B. Schiff, D-Calif., the top Democrat on the House Permanent Select Committee on Intelligence, said the incident “bears all of the hallmarks of a terror attack carried out by someone who may have been self-radicalized.” His office declined to release more information on how he reached that conclusion.

“The intelligence community is providing all necessary information and support to law enforcement as they investigate this individual’s motivations and background, and we hope to know much more very soon,” Schiff said in a statement.

An anonymous U.S. official told The Associated Press that Artan was born in Somalia and was a permanent U.S. resident. In an interview given to the Lantern campus newspaper in August, Artan said he was a Muslim and a new transfer student. Citing negative portrayals of Muslims in the media, he said he was confused and “scared” about where to pray on campus.

“I just transferred from Columbus State. We had prayer rooms, like actual rooms where we could go to pray because we Muslims have to pray five times a day,” Artan told the Lantern.

“I wanted to pray in the open, but I was kind of scared with everything going on in the media,” Artan said. “I’m a Muslim, it’s not what the media portrays me to be. If people look at me, a Muslim praying, I don’t know what they’re going to think, what’s going to happen.”

Artan said he decided to pray in a corner.

At least 11 people were treated for injuries at three hospitals, but none of the victims’ injuries was considered life-threatening, said Andrew Thomas, the chief medical officer for the Ohio State University Wexner Medical Center in Columbus.

The victims were primarily undergraduate and graduate students, and one was a faculty member, Thomas said. The injuries appeared to be evenly split between victims who had been hit by the car and those who had been injured by knife.

One victim came forward later because she had been “hiding in place,” Thomas said. She had been comforted by other students as they hid, university President Michael V. Drake said, and another victim had been driven to the hospital by another student, a stranger who had decided to help.

Footage published by the Lantern showed a young woman walking toward an ambulance with a pair of medical officials, holding what appeared to be an injured arm in the air.

The attack happened at 9:52 a.m., and less than five minutes later, university officials sent out a warning to students on campus: “Active Shooter on campus. Run Hide Fight.”

Police later said the attacker did not appear to have a gun and that he appeared to have acted alone.

“The guy ended up just coming and hopping the curb with his car and trying to mow down a couple people,” Jerry Kovacich, a third-year student in welding engineering, told the Lantern. “He lost control, and I think he ended up hitting three people, and then people were around the car. Somebody asked him if he was OK and the guy just hopped out of the car with a butcher knife and starting chasing people around.”

Horujko, who joined the campus Police Department in January 2015, was on the scene “in less than a minute and ended the situation in less than a minute,” Stone said.

“We believe injuries were minimized as a result of that,” said Monica Moll, the university’s public safety director.

The attack prompted a campus lockdown as police searched the area for possible other suspects, but the shelter-in-place order was lifted less than two hours later.

Officials said they were still waiting on a warrant to search a property associated with Artan. The FBI and the Bureau of Alcohol, Tobacco, Firearms and Explosives are assisting with the investigation. </s> (CNN) Investigators are searching for a motive behind an Ohio State University student's knife attack on campus Monday morning that wounded 11 people.

In a Facebook post shortly before the rampage, the Somali immigrant urged America "to stop interfering with other countries, especially the Muslim Ummah," a term for Muslim people at large.

"By Allah, we will not let you sleep unless you give peace to the Muslims," he wrote. "You will not celebrate or enjoy any holiday."

Artan rammed his car into a group of people on the Columbus campus. He then exited the car and charged at passersby with a knife.

What we know about the attacker

"I wanted to pray in the open, but I was scared with everything going on in the media," he told the paper.

Artan, who was originally from Somalia, left his native country with his family in 2007. They headed to Pakistan, where they were admitted as refugees as part of a minority sect of Somalis, a senior administration official told CNN. Seven members of the family applied for refugee status in the United States and were admitted in 2014. Today, they are all legal permanent residents and green card holders.

A community member, who described Artan as a good kid, said the attacker's family sounded shocked during a conversation.

Neighbor Stephanie Leper told CNN that Artan's family lives in four town home units. Law enforcement vehicles arrived there sometime after 10 a.m. and took people away in "paddy wagons," she said.

"I can't take it anymore," he said in the post.

Three calls, three shots, one dead

At 9:52 a.m. Monday, Artan drove over a curb and struck people near Watts Hall.

Jacob Bower, a 20-year-old student, said he saw the attacker outside between the Koffolt Laboratories and Watts Hall.

"He pulled a large knife and started chasing people around, trying to attack them," Bower told CNN, adding that he did not see anyone get stabbed.

Throughout the attack, the assailant didn't yell or say anything, Bower said.

"He was completely silent, which was very creepy. Not even when he was shot," the student said.

Artan's rampage ended in less than two minutes thanks to Officer Horujko's quick response, officials said.

Horujko called in the car at 9:52 a.m. A few seconds later, he called again to say he had engaged with the suspect. At 9:53 a.m., he called a third time to say he had shot the suspect.

It took Horujko three shots to kill Artan, Bower said.

"The cop that subdued the guy with the knife saved so many lives today."

Investigators used surveillance camera footage to track Artan's car before he arrived on campus, University Police Chief Craig Stone said. By tracing his movements, investigators were able to conclude he was alone in the vehicle and acted alone.

Gov. John Kasich praised the response, saying it showed "how much practice, how much training, how much expertise, how much coordination" existed among local law enforcement agencies.

"We are a strong, tough, resilient community," he said.

Ohio State President Dr. Michael V. Drake and others credited the school's active shooter training and the campus alert system for helping the community maintain order while the scene was secured. Ohio State's Columbus campus is one of the largest in the United States. Nearly 60,000 registered students attend classes on the sprawling urban campus.

At 9:55 a.m., three minutes after Horujko's first call, the school sent out a campus alert reporting an active shooter incident.

Some students piled chairs against a door to block him from getting in as they awaited word on the attacker's movements.

In 911 calls to police, several students described the chaotic scene.

About 90 minutes after the first call came in, the lockdown was lifted, Drake said.

Students had just returned to class Monday after Thanksgiving break -- and after the OSU football team's big win Saturday over the school's biggest rival, the University of Michigan.

Overall, it was "one of those days you're grateful for good training and great people across the board," Columbus Mayor Andrew Ginther said.

In a news conference Monday, Drake cautioned against jumping to conclusions when asked if the incident was terror-related or had anything to do with Ohio's Somali community, the second-largest in the country.

"We certainly don't have any evidence that would say that's the case," Drake said.

"What we want to do is really unify together and support each other; do our best to support those who were injured in their recovery, and then allow the investigation to take place." </s> COLUMBUS: A Somali-born Ohio State University student plowed his car into a group of pedestrians on campus and then got out and began stabbing people with a butcher knife Monday before he was shot to death by an officer. Police said they are investigating whether it was a terrorist attack. </s> A U.S. government source said investigators have reason to believe the attacker at the campus in Columbus was a Somali refugee. The city has a large Somali population.

Local officials declined to say what might have motivated the attack, and gave no details about the assailant, including his identity and whether he was a student at the university.

The attack at the Columbus campus, which was initially reported by the university on Twitter as involving an "active shooter," drew a massive response of heavily armed police.

Ohio State University police chief Craig Stone said there had been rumors of a second assailant, but police believe there was only one.

The suspect jumped the curb and used the vehicle to strike pedestrians in front of Watts Hall, Monica Moll, the university's director of public safety, said at a news conference. Local media reported the suspect used a sport utility vehicle.

He then left the vehicle armed with a butcher knife and stabbed several others, Stone told reporters.

An unidentified campus police officer who arrived at the scene shot and killed the suspect less than a minute after the attack began, Stone said.

"The only thing that you can say based upon common knowledge is that this was done on purpose,” Stone said. "To go over the curb and strike pedestrians and then to get out and start striking them with a knife, that was on purpose."

One person was critically injured, a Columbus Fire Department spokeswoman said. There were differing accounts on the total number injured. The fire department reported 10, while officials at a press conference said nine.

Five victims were taken to Ohio State University Wexner Medical Center, said Dr. Andrew Thomas, the chief medical officer. They included two with stab wounds and two others who had injuries from being hit with the vehicle, Thomas said.

Two other hospitals received four patients, suffering from lacerations and injuries from being struck by the vehicle, Thomas said. None of the victims had life-threatening injuries, officials said.

CNN aired an image from a room at the university where students had barricaded a door with stacked chairs.

Columbus and university police continued their investigation with assistance from the FBI. The attack had prompted university officials to warn students on Twitter to shelter in place.

Ohio State said it had lifted the order shortly before noon EST, adding that the campus was secure.

The university campus remained open, although classes were canceled for the day.

President Barack Obama was briefed on the incident by Lisa Monaco, his homeland security adviser, said White House spokesman Josh Earnest.

"The Columbus City Council stands united with Ohio State University," said Council President Zach Klein. "We are continually thinking about and praying for all those involved and affected by this senseless act of violence.”

Ohio Governor John Kasich said in a statement that state residents "thoughts and prayers go out to the Ohio State community."
Law enforcement officials believed Abdul Razak Ali Artan, the perpetrator of a car ramming and stabbing attack at Ohio State University (OSU)'s Watts Hall, was inspired by terrorist propaganda from the Islamic State of Iraq and the Levant, and radical Muslim cleric Anwar al-Awlaki.