At least 19 people have been killed and 23 others injured in a Boko Haram suicide attack on Maiduguri on Tuesday night.
It was the deadliest attack in months on the city.
Confirming the attack, Borno State Police Commissioner Damian Chukwu said 12 of the dead were members of a civilian self-defence force.
Meanwhile, in the same vein, an unverified video has reportedly emerged that shows Boko Haram militants publicly executing eight people in a village in northeast Nigeria for opposing Sharia law.
The video, seen by AFP news agency, reportedly featured a man wearing a white turban who told the villagers that those being executed opposed the islamic laws.