Many Students Feared Dead In Potiskum Bomb Blast

At least 20 students have reportedly been killed by a bomb at a school assembly in the north-east Nigerian town of Potiskum.
The explosion happened at a boys' science and technical school in the town.
Militant group Boko Haram is likely to be blamed for the attack.
It has often targeted schools during its five-year campaign to establish an Islamic state, which has left thousands dead.