As many as 16 reported to have died in bomb blasts in Nigeria's north. No group claimed responsibility for the attacks in an area that has been wracked by violence brought about by the Boko Haram insurgency.
Five female suicide bombers killed at least 12 people and wounded 11 in northeast Nigeria's Borno state, the birthplace of the militant Boko Haram insurgency, police said on Monday.
One report, citing local emergency services, indicated that 16 people had been killed in the attack. It could not be confirmed if this figure included the attackers.
There was no immediate claim of responsibility for the attacks. But the use of female suicide bombers in public places is a tactic used by Boko Haram, which has focused on Borno during its eight-year-old insurgency aimed at creating an Islamic caliphate.
Borno state police spokesman Victor Isuku said the attacks occurred on Sunday at around 08:30 pm (1930 GMT) in the village of Kofa, 8 km (5 miles) from the state capital Maiduguri.
"The first suicide bomber detonated near a mosque, killing seven persons. The second detonated in a house killing five persons," he said, adding that 11 people were hurt in the attacks. Isuku said the other three bombers also died.
Borno has been the state worst hit by the insurgency that has killed more than 20,000 people and forced some 2.7 million people to flee their homes since 2009.
Boko Haram killed 14 people in bombings and shootings in Maiduguri on June 7.
More details were not immediately available.