Meanwhile, residents of the southern Iraqi city of Diwaniya say they fear an all-out war among rival Shiite factions after the local governor and police chief were assassinated. The two officials died on Saturday when a powerful roadside bomb hit their convoy of vehicles. Three of their bodyguards were also killed. Many residents said they believed the men were assassinated by fellow Shiites. Reuters reports the Shiite-dominated south has become increasingly restless as factions vie for control of the oil-rich region, often pitting police loyal to one bloc against militiamen of others.