MAIDUGURI, Nigeria—Two female suicide bombers killed 13 people at a crowded market and a military checkpoint outside the biggest city in northeast Nigeria, witnesses said Friday.
It is the fourth attack in a week in which at least 162 people have been killed, including four suicide bombers, as Boko Haram Islamic extremists appear to obey an ISIS group order to step up attacks in the holy month of Ramadan. Nigeria’s homegrown extremist group became the ISIS group’s West Africa franchise earlier this year.
