The United Nations has withdrawn all international staff in parts of the western Darfur region to a regional capital after Arab militias said they would target foreigners and U.N. convoys in the area, the top U.N. envoy in Sudan said on Wednesday. Jan Pronk told Reuters in an interview that the government had made small steps to disarm the militia, known locally as Janjaweed, in West Darfur state, but more had to be done. The Janjaweed stand accused of a campaign of rape, killing, looting and burning non-Arab villages. Full Story