At least 50 people were killed on Sunday morning in an attack on a college in northeast Nigeria.
The students were shot dead as they slept in their dormitory at the College of Agriculture in Yobe state. Classrooms were also set on fire.
North-eastern Nigeria is under a state of emergency due to an insurgency by the Boko Haram group. The emergency was declared in May.
A state politician told the BBC that around 50 students had been killed. Two vanloads of bodies were taken to a hospital in Damaturu, the state capital.
The BBC reports Boko Haram has intensified attacks on civilian targets in recent weeks. Several schools have been attacked, including a raid in which 27 students and a teacher died at a school in Potiskum.
At least 42 people were killed in another raid on school dormitories in July, in the village of Mamudo.
Boko Haram regards schools as a symbol of Western culture. The group's name translates as "Western education is forbidden".
