An Improvised Explosive Device (IEDs) suspected to have been planted in a Mosque at Gamboru Main Market in Maiduguri, the Borno state capital exploded when worshippers were conducting their Magrib prayers at about 6:00 pm.
Sources said the Mosque usually hosts many people, including traders and sellers who patronizes the Gamboru market on a daily basis.
There was no immediate word on casualties or official comment.
The blast occurred in a city that has been at the heart of an Islamist insurgency waged by Boko Haram and its offshoot Islamic State West Africa Province (ISWAP) for nearly two decades which has killed tens of thousands and displaced millions across the northeast.
No group has claimed responsibility, but militants have previously targeted mosques and crowded places in Maiduguri in suicide bombings and improvised explosive device attacks.
Boko Haram launched its uprising in Borno state in 2009, seeking to establish an Islamic caliphate. Despite military offensives and regional cooperation, sporadic attacks continue to threaten civilians in the northeast.
Reuters