A peace deal signed three months ago between Sudan's government and the main rebel group in Darfur has failed to halt violence in the region, the United Nations said Wednesday, citing an increase in rape and continued attacks by militias and rebel factions. The global body said the May 5 peace deal, signed in Nigeria, was "doomed to failure" without more support from the Sudanese government, "with the population of Darfur continuing to suffer grave violations of human rights as violence among competing armed groups in Darfur persists." The 20-page report by the UN High Commissioner for Human Rights acknowledged that fighting between Sudanese armed forces and the Sudan Liberation Army, the main rebel group, has decreased since the deal. But "attacks by militias and rebel factions continued unabated, mainly in south and north Darfur," the report said.