Taleb Abbas Ali al-Saedi, a high-level leader of the Popular Mobilization Forces, was shot dead on Saturday in Karbala, a city about 60 miles southwest of Baghdad, the British news outlet reported. The identities of the gunmen are unknown.

Local Iraqi media claim that al-Saedi was “assassinated” by unknown shooters. No further details about the gunmen were available. He was said to be the leader of the Karbala Brigades, which is a part of the Iran-backed Shiite PMF umbrella group.

The Twitter account Aurora Intel said that reports claim Al-Saedi and two of his companions were killed during the shooting by anonymous gunmen.