KIRKUK, IRAQ--Iraqi security forces have found mass graves in an area recently retaken from Daesh, also known as ISIS, that could contain up to 400 bodies, an Iraqi official said Monday. The bodies of civilians and security forces were found in an abandoned base near Hawija, a northern town retaken in early October, Kirkuk governor Rakan Saed said. He didn't say when authorities will start exhuming the bodies from the mass graves. The area was strewn with torn clothing and what appeared to be human bones and skulls. Iraqi forces have driven Daesh from nearly all the territory it once controlled.