Bomb kills at least 17 at livestock market

MAIDUGURI, Nigeria — A bomb exploded at a livestock market in the northeastern Nigerian city of Maiduguri on Tuesday, killing at least 50 people, according to a witness.

“We have been helping to evacuate the corpses and I can say over 50 people died from the attack,” Isa Mohammed, a member of a vigilante group, said by phone.

It marked the latest in a string of attacks since Muhammadu Buhari was sworn in as president of Africa’s biggest economy on May 29, vowing to defeat militants who have been fighting a six-year insurgency to establish Islamic law. At least 26 people died on Saturday in Maiduguri, the capital of Borno state, when a suicide bomber blew himself up at a mosque.

The National Emergency Management Agency estimated that at least 17 people were killed in Tuesday’s blast and others were wounded, Abdulkadir Ibrahim, a spokesman, said by phone.

Though a military campaign by Nigeria and neighboring countries this year has scored victories against Boko Haram fighters in the northeast, the group still is carrying out bombings and waging guerrilla warfare. It has killed at least 5,500 people since 2014 in Africa’s biggest oil producer, according to Amnesty International.

Also on Tuesday, Boko Haram released a video that it said showed the execution of policemen and civilians. The video posted to YouTube couldn’t be verified.