Emerging reports suggest that security operatives are currently repealing an attack on Jos Correctional Centre.
Sources say the identity of the assailants could not instantly be verified.
Military Information Officer for Operation Safe Haven, Major Ishaku confirmed the attack to Channels Television on Sunday evening.
He disclosed that personnel of the joint task force are currently at the facility to curtail the attackers.
The Jos Correctional Centre is situated in the heart of Jos City which is not far from the police headquarters.
Security operatives from the Police Division A are expected to join in repelling the attack as they are also situated very close to the centre.