Victims of a suicide bomb attack at a refugee camp receive treatment inside an ambulance, in Maiduguri, Nigeria, Wednesday, Feb. 10, 2016. Two female suicide bombers blew themselves up in a northeast... (Associated Press) 
 
 Victims of a suicide bomb attack at a refugee camp receive treatment inside an ambulance, in Maiduguri, Nigeria, Wednesday, Feb. 10, 2016. Two female suicide bombers blew themselves up in a northeast Nigerian refugee camp, killing at least 56 people, health and rescue officials said Wednesday. (AP Photo/Jossy... (Associated Press) 
 
 MAIDUGURI, Nigeria (AP) — Two female suicide bombers blew themselves up in a northeastern Nigerian refugee camp, killing at least 58 people, health and rescue officials said Wednesday. 
 
 A third woman bomber was arrested and gave officials information about other planned bombings that helped them increase security at the camp, said an official of the Borno State Emergency Management Agency. 
 
 Some 78 people are being treated for wounds from the twin explosions that occurred Tuesday morning in a camp of some 50,000 people driven from their homes by the Boko Haram Islamic uprising, according to health workers in Maiduguri, the biggest city in northeastern Nigeria and birthplace of Boko Haram. They spoke on condition of anonymity as did rescue officials who said they were not authorized to speak to reporters. 
 
 The emergency management official said 51 bodies were buried Wednesday in Dikwa, the scene of the carnage 85 kilometers (53 miles) northeast of Maiduguri. Health workers said five bodies were brought to the main hospital in Maiduguri. PR Nigeria, an agency that disseminates official news, Wednesday night quoted health and rescue officials putting the number of dead at 58. The officials said poor cellphone service delayed news of the attack. 
 
 Boko Haram's 6-year-old Islamic insurgency has killed 20,000 people, made 2.5 million homeless and spread across Nigeria's borders. 
 
 In northern Cameroon, officials said two suicide bombers believed to have come from Nigeria on Wednesday killed 10 people and injured 40 attending a wake in a border village, including children. Attacks in Chad and Niger also are blamed on Boko Haram. 
 
 Since troops from Nigeria, Chad and Cameroon last year drove the Islamic extremists from towns and villages where they had announced an Islamic caliphate, the insurgents have taken to attacking soft targets such as mosques and market places where many people gather. ||||| More than 70 people have been killed in a double suicide attack at a camp for internally displaced people in northeast Nigeria, local officials told Al Jazeera. 
 
 The twin suicide bombings in Borno state on Tuesday morning - reportedly committed by women - also left 78 people injured, officials added. 
 
 Information about the attacks was first reported by officials on Wednesday night. 
 
 The bombings occurred at a camp in the town of Dikwa, some 80km northeast of Maiduguri, the birthplace of Boko Haram. 
 
 Ahmed Satomi, of the State Management Agency, told Al Jazeera officials had arrested one woman who had refused to detonate a bomb after travelling to the camp from a nearby town with two other bombers. 
 
 "The one they arrested alive, she confessed. She feel that her parents would come and that's why she refused to detonate her own bomb," Satomi said. 
 
 Al Jazeera's Ahmed Idris, reporting from Katsina in northern Nigeria, said attacks on civilian targets by suspected Boko Haram fighters have been on the increase recently in Nigeria. 
 
 "Officials are telling us that the injured have been evacuated for medical attention. The army, which is fighting Boko Haram, has yet to comment on this recent attack. But the finger of blame is already pointing at Boko Haram," Idris said. 
 
 The camp is home to 50,000 people driven from their homes by the armed group, whose six-year-old rebellion has killed 20,000 people and made 2.5 million homeless. 
 
 IDP camp attacks 
 
 Boko Haram, which has increasingly used suicide and bomb attacks as Nigeria's military pushes them out of territories they once controlled, has hit camps for internally displaced people before. 
 
 On September 11 last year, seven people were killed when an improvised explosive device went off at the Malkohi camp, near Yola, in neighbouring Adamawa state. 
 
 The camp has been used to house kidnapped women and children rescued by the military. 
 
 On January 31, at least 86 people were killed in Dalori, some 12km from Maiduguri, when Boko Haram fighters attacked and burned down surrounding villages. ||||| MAIDUGURI, Nigeria (Reuters) - Two female suicide bombers killed more than 60 people at a camp for people displaced by an insurgency of the jihadist Boko Haram group in the northeast Nigerian town of Dikwa, military and emergency officials said on Wednesday. 
 
 The attack occurred 85 km (50 miles) outside the capital of Borno state, centre of the seven-year insurgency, they said. It took place on Tuesday, but a breakdown in the telephone system prevented the incident being made public earlier. 
 
 The two female suicide bombers sneaked into an internally displaced persons (IDP) camp and detonated themselves in the middle of it, emergency officials and the military source said. 
 
 The chairman of the State Emergency Management Agency, Satomi Ahmad, added that 78 people were injured. 
 
 No group claimed responsibility but the attack bore the hallmarks of Boko Haram, which has frequently used female bombers and even children to hit targets. 
 
 The militant group has recently increased the frequency and deadliness of attacks with three at the end of January. At least 65 people were killed outside Borno state capital Maiduguri on Jan. 31. 
 
 Since it lost territory to a government counter-offensive last year, Boko Haram has reverted to hit-and-run attacks on villages and suicide bombings at places of worship or markets. 
 
 Boko Haram has only rarely targeted camps housing people displaced by the conflict and Tuesday’s attack was the first one to kill victims in Borno state. 
 
 The military said militants made one abortive attempt on a camp on the outskirts of Maiduguri on Jan. 31. Boko Haram hit a Nigerian IDP camp for the first time last September, in the Adamawa state capital of Yola. ||||| MAIDUGURI, Nigeria — When three girls showed up Monday at a camp for people who had fled the militant group Boko Haram, they were welcomed and offered a place to sleep. 
 
 But early Tuesday morning, as the first light spread across the sprawling camp, two of the girls blew themselves up with bombs they had been concealing, killing 58 people and wounding 78. 
 
 The victims were among the more than 50,000 people who had been forced from their homes by Boko Haram’s rampages, only to be confronted with the same horror in the very place they had sought refuge. 
 
 The episode at the Dikwa camp for displaced persons follows a pattern of murderous attacks that Boko Haram has carried out since the Nigerian military began rooting the militants from strongholds across the northern part of the country. ||||| Story highlights The camp in northeastern Nigeria was set up as a refuge for people who had been victimized by Boko Haram 
 
 Sources say three female bombers, disguised as displaced people, entered the camp 
 
 Two set off their suicide vests; a third refused after learning family members were there 
 
 Kano, Nigeria (CNN) Two female suicide bombers between the ages of 17 and 20 blew themselves up this week in a camp in northeastern Nigeria set up to shelter people from terrorism, killing at least 58 people. But others were spared when a third intended bomber realized at the last minute that her family had taken shelter there, too, and refused to detonate her explosives, relief officials said. 
 
 Officials said 78 people were injured. The victims were staying in a camp for people who had been displaced by Boko Haram violence in Nigeria's Borno state. 
 
 "There were three female bombers who entered the camp around 6:30 a.m. disguised as displaced persons," said Satomi Alhaji Ahmed, head of the Borno State Emergency Management Agency. "Two of them set off their explosives in the camp while the third refused after realizing her parents and siblings were in the camp." 
 
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 Two other would-be bombers were also in the group but failed to set off their explosives for unknown reasons, he added. They remain at large. 
 
 The bombers struck at the camp Tuesday, in the town of Dikwa, Ahmed said. Dikwa is near the border with Cameroon. 
 
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– Two young women welcomed into a Nigerian shelter for people fleeing Boko Haram turned on their newfound campmates on Tuesday, the New York Times reports, blowing themselves up and killing at least 58 people (Reuters puts the number at more than 60, while Al Jazeera notes it's upward of 70) and injuring 78. The suicide bombers were actually accompanied by a third female who balked at the last minute for a very personal reason. "There were three female bombers who entered the camp around 6:30am disguised as displaced persons," the head of the Borno State Emergency Management Agency said, per CNN. "Two of them set off their explosives ... while the third refused after realizing her parents and siblings were in the camp." The third suspect informed military officials that they were sent by Boko Haram, which was planning on using more females to carry out future attacks. Boko Haram has indeed been tapping more women and girls for missions, as well as other methods: The Times documents an instance in which a bomb was hid in okra, and attackers have been told to pretend they're mentally ill. Tuesday's bombing is said to be retribution for an attack on a Boko Haram market by Nigerian soldiers, who killed more than 100 Boko Haram members and liberated up to 1,000 women and girls being held as sex slaves, per the Times; those freed were brought to the Dikwa camp. Thanks to the efforts of new President Muhammadu Buhari, forces have driven Boko Haram out of many outposts, though that hasn't stopped the group from hitting well-populated soft targets. Meanwhile, in neighboring Cameroon, a pair of suicide bombers reportedly from Nigeria killed 10 and injured 40 at a wake Wednesday, per the AP. (Boko Haram isn't showing signs of slowing.)