It is the latest bombing in a string of attacks blamed on Islamic extremist group Boko Haram that's killed some 200 people in the past week.
Nearly 100 men and boys praying in mosques were gunned down on Wednesday, and a local official said Sunday that 21 more bodies have been recovered from burnt-out houses since then.
On Friday, the military said six women suicide bombers caused explosions that killed scores of people including a soldier at Zabamari Muna village outside Maiduguri, the biggest city in northeast Nigeria and the birthplace of Boko Haram.