Nigeria, Dec. 25 -- A bomb blast has been reported in a mosque in Maduguri, Borno State.

The explosion, according to Channels TV, occurred around 6:00 p.m. at a Juma'at mosque in Gamboru market in Maiduguri.

The television station said the blast occurred when worshippers were observing their evening (Magbrib) prayers. It said many of them were either killed or injured.

However, the number of casualties from the scene remains unknown as of press time.

The police spokesperson in Borno, Nahum Daso, could not be immediately reached for official confirmation.

He did not respond to calls and a text sent to him was not responded to at the time of this report.

The cause of the bomb blast is not clear yet. But previous bombings in Maiduguri ...