The governor of Borno, Babagana Zulumhas appealed for calm following the bomb explosions in Maiduguri, the state capital.
On Monday, several people were reportedly injured after explosions struck parts of the city.
Residents and security sources said the blasts triggered panic in affected areas as emergency responders moved in to assist victims and secure the scenes.
In a statement on Monday, Zulum denounced the attacks, describing them as “utterly condemnable, barbaric and inhumane”.
The governor said targeting civilians and places of worship is unacceptable, particularly at a time when Muslim faithful are observing acts of devotion.
He extended condolences to the families of the victims and prayed for the swift recovery of those injured.
Zulum urged residents to remain calm but vigilant, calling on communities to strengthen security awareness in mosques, churches, markets and other public gatherings.
He added that security agencies have commenced investigations to identify and apprehend those responsible for the explosions, assuring residents that those behind the attack will be brought to justice.