Six Nigerian, Niger troops killed by Islamic State, security forces say

MAIDUGURI, Nigeria (Reuters) - Six troops from Nigeria and Niger were killed by Islamic State West Africa Province (ISWAP) militants during an operation this month, a joint military force said on Thursday.

ISWAP, which split from Boko Haram five years ago and pledged allegiance to Islamic State, has been fighting troops from Benin, Cameroon, Chad, Nigeria and Niger in the Lake Chad region.