The death toll from an explosion in the rebel-controlled Syrian city of Idlib rose to at least 19 on Tuesday, the Syrian Observatory for Human Rights said.

Thirteen of those killed in Monday's attack were civilians, according to the British-based war monitoring group.

Video uploaded to the internet by the civil defence group known as the White Helmets purported to show two children being rescued alive from the rubble in Idlib. A child was seen being rushed to a waiting ambulance, and then the video appeared to show a child being treated at a field hospital.

A second video purported to show workers searching through the rubble of a damaged building. The Observatory said that a number of people are still missing and the death toll is expected to rise, adding that the cause of the explosion was unclear. </s> BEIRUT (Reuters) - At least 18 people were killed and tens more injured, including civilians, in an explosion in Syria’s northwestern city of Idlib, a war monitor reported on Sunday.

The Syrian Observatory for Human Rights said the explosion targeted the headquarters of an opposition faction in Idlib. It was not immediately clear what the nature of the attack was. </s> An explosion of unknown origin at a weapons depot Sunday in the northwestern Syrian province of Idlib killed at least 69 civilians including 17 children, in addition to scores of injuries.

Mustafa Hajj Yusuf, the head of Idlib Civil Defense, earlier acknowledged the death toll at least as 39 dead and 45 injured. He later told Anadolu Agency that search and rescue operation was concluded as of Monday morning and 17 civilians, mostly women and children, were pulled under the rubble. The number of the injured stands at 50.

The Syrian Observatory for Human Rights also confirmed the casualty toll on Monday.

An AFP correspondent at the site in the opposition-held town of Sarmada near the Turkish border said the explosion caused two buildings to collapse.

On Sunday morning, rescue workers used a bulldozer to remove rubble and extract trapped people, the correspondent said.

Rami Abdel Rahman, head of the Syrian Observatory for Human Rights monitor, earlier said the death toll could rise as dozens were still missing.

"The explosion occurred in a weapons depot in a residential building in Sarmada," the head of the Britain based monitor said. But the cause of the blast was "not yet clear", Abdel Rahman added.

A rescue worker carried the motionless body of a small child from the wreckage to an ambulance, the AFP correspondent said.

Behind mounds of rubble, the facade of a building was scorched black, due to a fire after the blast.

A civil defense source told AFP that women and children were among the dead.

But rescue workers had pulled out "five people who were still alive", the source said.

Most of Idlib is controlled by Turkish backed opposition fighters, while parts of it are controlled by terrorist groups led by al-Qaida linked Hayat Tahrir al-Sham, but the Daesh terror group also has sleeper cells in the area.

In recent months, a series of explosions and assassinations -- mainly targeting opposition officials and fighters -- have rocked the province.

While some attacks have been claimed by Daesh, most are the result of infighting since last year between various other groups.

In recent days, regime forces have ramped up their deadly bombardment of southern Idlib and sent reinforcements to nearby areas they control.

Bashar al-Assad has warned that regime forces intend to retake Idlib, after his regime regained control of swathes of opposition held territory elsewhere.

Around 2.5 million people live in the province, half of them displaced by fighting in other parts of the country.

More than 350,000 people have been killed and millions displaced since Syria's civil war started in 2011 with the brutal repression of anti-government protests. </s> BEIRUT - An explosion killed 11 people and wounded more than 80 on Monday in the rebel-controlled Syrian city of Idlib, the Syrian Observatory for Human Rights said.



The British-based war monitoring group said the source of the blast was unclear.



The Civil Defence in Idlib, a rescue service that operates in rebel territory, gave the death toll as at least 10 civilians with 110 others injured. It caused damage in four buildings, one of them entirely.



The northwestern Idlib region remains the largest populated area of Syria in the hands of insurgents fighting the Damascus government, including both jihadist factions and nationalist FSA rebels. The dominant force there is Hayat Tahrir al Sham, an Islamist alliance spearheaded by the former al-Qaeda affiliate in Syria.



Tens of thousands of fighters and civilians have poured into Idlib in recent years, after leaving other parts of the country which the army recaptured with the help of Russia and Iran. ( </s> An explosion that collapsed a building in an opposition-held area of northern Syrian city has killed 31 people, according to activists Tuesday.

The cause of the blast that hit Idlib city on Monday, killing 22 civilians and an estimated nine militiamen, had yet to be ascertained, the Syrian Observatory for Human Rights, a British war monitor, said. </s> An explosion at a weapons depot in a rebel-held town in northwest Syria killed at least 39 civilians including a dozen children Sunday, a monitor said.

The explosion happened in the town of Sarmada, which is near the Turkish border and north of the provincial capital Idlib city.

Rami Abdel Rahman, head of the Syrian Observatory for Human Rights monitoring group, said a previous death toll of 12 increased after more bodies were retrieved from the rubble.

But the cause of the blast was "not yet clear", Mr Abdel Rahman added.

He said most of those killed were family members of fighters from Hayat Tahrir al-Sham (HTS), an alliance led by jihadists from Syria's former Al-Qaeda affiliate, who had been displaced to the area from the central province of Homs.

A civil defence source told AFP news agency that women and children were among the dead. But rescue workers had pulled out "five people who were still alive", the source said. </s> BEIRUT (Reuters) - The number of people killed when an explosion ripped through a building thought to be storing weapons in rebel-held northwestern Syria has climbed to 69 including 17 children, the Syrian Observatory for Human Rights reported on Monday.

The explosion happened in a residential building in the town of Sarmada in Idlib province near the Turkish border on Sunday. Idlib forms part of the last major rebel stronghold in Syria. </s> Syrian activists: Several dead in Idlib chemical attack The Syrian Observatory for Human Rights monitoring group put the death toll at 35, among them 10 children. Check out this story on USATODAY.com: http://usat.ly/2oxmEUF A Syrian child receives treatment following a suspected toxic gas attack in Khan Sheikhun, a rebel-held town in the northwestern Syrian Idlib province, on April 4, 2017.

Start the conversation, or Read more at USA Today. </s> At least 23 people were killed on Sunday, including seven civilians, and dozens injured after a powerful explosion aimed against the headquarters of an Islamic insurgent group in the city of Idlib, in northwestern Syria, according to the Syrian Observatory for Human Rights.

Amongst the injured there are serious and critical cases, which could increase the death toll in the next few hours, the Syrian Observatory for Human Rights warned.

The organization could not determine whether the explosion was triggered by a regular bomb or a car bomb.

The target of the attack was the headquarters of the armed group "Soldiers of the Caucasus," one of the Islamic fundamentalist rebel groups operating in Idlib which is made up of fighters from Central Asia.

Rescue teams were transferring the wounded and the dead bodies and continuing the task to rescue those who are trapped under the rubble following the explosion.

The province is controlled almost entirely by the Organization for the Liberation of the Levant, an alliance created by al-Qaeda's former Syrian branch and other armed groups who are fighting against the forces loyal to the Syrian president Bashar al-Assad.
An explosion in Idlib kills more than a dozen, including civilians and children.