Officials say a prominent Iraqi Kurdish commander in the fight against the Islamic State group has been killed in a bombing near the northern city of Kirkuk.

The officials say Maj. Gen. Salah Delmani, head of the 118th brigade of the Kurdish peshmerga forces, was killed Tuesday along with three bodyguards when a bomb detonated near his car. The officials say it's unclear whether explosives were planted on Delmani's car or if his motorcade was struck by a roadside bomb.

They spoke on condition of anonymity because they are not authorized to brief reporters. No one has claimed responsibility for the attack.

Delmani was the commander in Daquq, a village south of Kirkuk on the road to Baghdad, which was recently recaptured from the Islamic State militant group.