Nigeria's Boko Haram crisis: Maiduguri 'preachers kill dozens'

Suspected Boko Haram militants have launched an attack in a village near the north-eastern Nigerian city of Maiduguri, killing about 45 people.
Survivors said the attackers said they had come to preach to the crowd, before opening fire on them.
Maiduguri and surrounding areas have not suffered many attacks since a state of emergency was imposed a year ago.
Instead more remote regions have become the targets of the Islamist group's raids