Insurgents kill 22 in mortar attack on Baghdad jail
To the west in Fallujah, meanwhile, Iraqi security forces and civilians, who fled days of street fighting with US Marines, began to return in a critical test of an agreement between US officials and local leaders to fend off an all-out assault by US forces.
All of those killed or injured in the mortar attack on the US-run prison were security detainees, said Col Jill Morgenthaler.
