Suspected Islamic militants have killed 29 students in a pre-dawn attack on a northeast Nigerian school, survivors say, setting ablaze a locked dormitory and shooting and cutting the throats of those who escaped through windows. Some were burned alive.
Soldiers guarding a checkpoint near the government school were mysteriously withdrawn hours before the attack, said the spokesman for the governor of Yobe state.

Female students were spared in the attack, said spokesman Abdullahi Bego. The attackers went to the female dormitories and told the young women to go home, get married and abandon the Western education they said is anathema to Islam, he said.
He was relating to The Associated Press what survivors and community leaders told Governor Ibrahim Gaidam when he visited the now-deserted and destroyed Federal Government College at Buni Yadi, a secondary school 70km south of the state capital, Damaturu.
The militants locked the door of one dormitory where male students were sleeping and then set it ablaze, slitting the throats of those who tried to clamber out of windows and gunning down those who ran away, said teacher Adamu Garba.
Some students were burned alive in the attack that began around 2am (local time), he said.
Bego said the entire complex of the relatively new school had been burned out by firebombs - six dormitories, the administrative building, staff quarters, classrooms, a clinic and the kitchen.
The governor would be asking questions about why the school apparently was left unprotected, he said.
"The community complained to the governor that yesterday the military were withdrawn and then the attack happened," he said. A group of about eight soldiers manned the checkpoint when an AP reporter visited recently, and the nearest military base was a unit of about 30 soldiers in Buni Gari town, 2km away.
But soldiers from Damaturu did not arrive until noon, hours after the attackers had finished their work and taken off, according to community leaders who said they buried the bodies of 29 victims. Most appeared to be between 15 and 20 years old, Bego said.
Military spokesman Eli Lazarus had confirmed the attack but said he could not give an exact death toll because soldiers still were gathering corpses. He could not immediately be reached to comment on charges about the abandoned roadblock.
Nigeria's military has reported arresting several soldiers accused of aiding and passing information to extremists of the terrorist network of Boko Haram - the nickname means "Western education is forbidden." A senator also has been accused of similar charges.
President Goodluck Jonathan had dismissed charges the military is losing the war to halt the 4-year-old Islamic uprising in the northeast of Africa's biggest oil producer.
He suggested he could withdraw the military from Borno state and see how long its governor, Yashim Shettima, could remain in his official residence. Shettima had flown to Abuja, the capital, last week to tell Jonathan that Boko Haram are "better motivated and better armed."
Jonathan said the Boko Haram attacks are "quite worrisome" but that he is sure "We will get over it."
Tens of thousands of Nigerians have lost family members, houses, businesses, their belongings and livelihoods to the rebellion and the fallout from a military state of emergency by soldiers accused of gross human rights violations including setting ablaze entire villages and summary executions of suspects.
The overnight attack is the latest in a string of deadly attacks - more than 300 civilians killed this month alone.
Jonathan said the military has enjoyed "some successes." Entire towns and villages were under the sway of Boko Haram when Jonathan declared a state of emergency in May. The military quickly forced the insurgents out of urban areas, only to have them regroup in forests and mountain caves where it has proved difficult to flush them out.
The military said recent attacks are perpetrated by militants who escaped a sustained aerial bombardment and ground assaults on their forest hideouts along the border with Cameroon, an offensive begun after Jonathan last month fired and replaced his entire military command.
On Saturday, the military announced it had closed hundreds of kilometres of the border with Cameroon to prevent militants using it as an escape hatch and launch pad for attacks.
US Secretary of State John Kerry earlier condemned the "unspeakable violence and acts of terror" and said the United States is helping Nigerian authorities "to combat the threat posed by Boko Haram while protecting civilians and ensuring respect for human rights."
But survivors and local officials charge they get no protection.
"Everybody is living in fear," local government chairman Maina Ularamu told AP after Izghe village was attacked twice in a week this month - with militants killing 109 people and burning hundreds of thatched huts in neighbouring Adamawa state.
"There is no protection. We cannot predict where and when they are going to attack. People can't sleep with their eyes closed," Ularamu said.

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