At least 36 people have been killed in multiple suicide attacks in northeastern Nigeria's Borno state at a mosque and a residential building, Reuters quoted police and medical sources as saying on Friday. A twin suicide bombing at a mosque on the outskirts of the state capital Maiduguri killed around 29 people late on Thursday, a medical source said. A police spokesman put the toll at 14. Around six people were killed by another suicide attack on Friday morning near the earlier bombings, but not at a mosque, a spokesman for the National Emergency Management Agency said. The bomber was also killed, while 17 people were wounded. No one has claimed responsibility for the attacks.