The blast struck the mosque in the village of Kouyape, in Kolofata
district north near the Nigerian border, at around 5:30 am (0430 GMT) during
morning prayers, a security source said.
"Eleven worshippers were
killed at the scene. A twelfth died of their wounds in hospital," the
security source said, adding that the attacker was praying alongside other
worshippers when he blew himself up.
Another source close to the security
services confirmed the blast killed 12 people and the bomber.
The bombing came after two people were
killed overnight in the same area in another attack blamed on Boko Haram, the
security source said.
