Boko Haram Crisis: Nigeria Military Air Strikes 'Kill Militants'

At least 30 militants have been killed during air raids on their training camps in northeastern Nigeria, An army spokesman said jets and helicopter gunships had been used to attack several camps. He told the BBC that a plane had been hit by anti-aircraft fire but had managed to return to base.

States of emergency were declared this week in three northeastern states hit by Boko Haram's Islamist insurgency. Nigerian forces are trying to regain control in the states of Adamawa, Yobe and Borno. Meanwhile, explosions and gunfire have been heard overnight in Katsina state.