Dozens killed in Nigeria attack

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.