More than 40 people have reportedly been killed in an attack on a boarding school in Nigeria.
It is the deadliest of at least three assaults on schools, since the military launched an offensive in May to try to crush the Islamist insurgent group Boko Haram.
Suspected militants are said to have set buildings on fire during the latest attack, which happened in the town of Mamudo, in northeast Nigeria.
Hit-and-run strikes have raised fears that the seven-week-old military offensive has pushed the insurgents, fighting for a breakaway Islamic state, into hiding. But it has failed to stop them launching devastating attacks.