Security forces killed an ISIS commander and four fighters in the Hamrin Mountains area of northeast Iraq on Sunday, the military said. Iraqi and US-led coalition warplanes have been carrying out air strikes in the area, targeting militant hideouts, for three days, Reuters reported. The elite Counter Terrorism Service and the militarys operations command for Diyala province did not name the commander but they said in a statement he was in charge of ISIS forces in Hamrin. He and four "followers" were killed in the area northeast of Baquba, the provincial capital, on Sunday, it said, according Reuters. Iraq declared victory over the group, which once held large swathes of the country, in December 2017. ISIS has now switched to hit-and-run attacks. The militants regrouped in the Hamrin mountain range in the northeast.