At least 14 persons had so far died and many injured in Thursday's twin blasts in Mulai on the outskirts of Maiduguri.
The Commissioner of Police in the state, Mr Aderemi Opadokun, confirmed the incident while speaking with newsmen in Maiduguri.
Opadokun said: “At about 6.35 p.m. on Thursday, two suspected suicide bombers detonated their explosives in and outside a Mosque in Mulai.
“The building collapsed injuring many people that were praying.” Opadokun stated.
“The number of death so far is about 14, including the two bombers.
“The casualties have been evacuated to University of Maiduguri Teaching Hospital (UMTH) and the Specialists Hospital, Maiduguri,” the commissioner added.
He said investigation into the matter had commenced, while normalcy had been restored in the area.
Opadokun appealed to residents of the state to be vigilant and report any strange movements or objects in their locality to security agents for necessary action.
The bomb explosion occurred inside the mosque while prayer was going on around 6:20pm.