UN human rights investigator Paul Hunt is calling for an independent inquiry into how the U.S. military's siege of Fallujah has affected civilians. Hunt says that while reliable information is difficult to obtain, there are credible claims that U.S. forces have been guilty of serious human rights breaches in their month-long siege of the city. He notes some reports say that 90 per cent of the deaths during the fighting have been non-combatants and he is urging the U.S.-led civil administration in Iraq to launch the independent probe.