Suspected Islamist gunmen have attacked a college in north-eastern Nigeria, killing up to 50 students.
The students were shot dead as they slept in their dormitory at the College of Agriculture in Yobe state.
North-eastern Nigeria is under a state of emergency amid an Islamist insurgency by the Boko Haram group.
Boko Haram is fighting to overthrow Nigeria's government to create an Islamic state, and has launched a number of attacks on schools.
Tomi Oladipo reports from Lagos.
