Nigerian security forces say they have killed at least eight militants in fighting in the north-eastern city of Maiduguri.
The army said the members of Islamist militant group Boko Haram died in an exchange of gunfire following explosions at a market.
Three civilians were also injured, said the army, although witnesses reported seeing at least 20 corpses at a market.
Boko Haram has launched a series of deadly attacks across northern Nigeria.
Residents told the BBC they had heard several explosions coming from the Baga market.
A military spokesman told the BBC that soldiers had responded to the explosions and engaged in a gun battle with militants.