Iraqi forces killed 15 members of the ISIS terrorist group in the northern Salaheddine province, announced the army on Wednesday. Security forces “have completed a search operation which led to the destruction of two hideouts used by the terrorists and the killing of 15 elements inside a large tunnel,” a spokesman for the military’s Joint Operations Command said in a statement. It did not say when the incident took place. ISIS, which once occupied a third of Iraq’s territory, has been largely defeated in the country but has continued to carry out ambushes, assassinations and bombings there and still poses a threat. Iraq declared final victory over ISIS in December but the terror group has resorted to guerrilla tactics since it abandoned its goal of holding territory and creating a so-called “caliphate” straddling Iraq and Syria. Most of its activity in Iraq takes place in the three provinces of Salaheddine, Diyala and Kirkuk.