Iraqi police say they have dismantled an ISIS-linked group known as "Behaviorists" (Al Solokeyoon" in northern Dhi Qar governorate.
Security officials said 20 terrorists belonging to the group had been arrested.
In December 2017, Iraqi PM Haider Abadi declared the full liberation of Iraqi territories from ISIS terrorists.
US-led coalition gave military support to a campaign launched by Iraqi forces and Shiite militias.
But human rights groups including Amnesty International said Iran-allied IMIS Militias had committed war crimes against civilians, particularly Sunnis.