Three Dutch motorcycle gang members have gone to Iraq to help Kurdish fighters battle ISIS.

The president of the No Surrender Bandidos, Klas Otto, told Dutch television station NOS on Saturday that members from Amsterdam, Rotterdam and Breda went to Mosul in northern Iraq last week to fight alongside the embattled Kurds.

One biker warrior, identified only as Ron, is seen in a Twitter photo dressed in military gear and holding an assault rifle, his arm around a Kurdish fighter.

No Surrender's Facebook page contains a message of thanks and one poster calling the biker freedom fighters "true Kurdish heroes."