Explosions and gunfire were heard early Tuesday coming from an area near a police station in the Nigerian city of Kano

KANO, Nigeria: Explosions and gunfire were heard early Tuesday coming from an area near a police station in the Nigerian city of Kano, where coordinated attacks and gun battles last week killed at least 185 people.

An AFP correspondent heard some 15 blasts and gunshots coming from the vicinity of a mobile police headquarters. Details were not immediately clear, and police were not available for comment.

One resident reported a similar account.

"I was (awakened) from sleep by explosions and gunshots coming from the mobile barracks and police station opposite," the resident said, adding that they had stopped after several minutes.

"It's terrifying ... It's too dangerous to go out, besides there is curfew."

Sporadic gunfire could still be heard after the explosions halted.

A night-time curfew is in effect in the wake of Friday's attacks in Kano claimed by Islamist group Boko Haram.