(BBC News) The Nigerian military has said that more than 260 Boko Haram militants have surrendered in north-eastern Nigeria.
A spokesman also said that the military had killed the man posing as the group's leader, Abubakar Shekau.
Mohammed Bashir is said to have appeared in the group's videos but is thought to be an imposter.
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Boko Haram has suffered heavy losses in recent weeks as the Nigerian military battled the group close to its hometown of Maiduguri in the north east.
The military said that 135 Boko Haram members surrendered with their weapons in Biu, Borno State, on Tuesday - and that 133 others surrendered elsewhere in north-eastern Nigeria and were currently being interrogated.