Dozens of Nigerian fishermen are feared dead after Chad's military launched air strikes on Boko Haram militants in the Lake Chad region, a local fishermen's leader has told the BBC. Abubakar Gamandi Usman, chairman of Lake Chad Basin Fisheries Association of Nigeria, said several of the union's members were missing and estimated more than 40 had died. No bodies have yet been recovered but Usman believes some fishermen were hit by the strikes, while others drowned after attempting to flee in