Kigali - Rwanda is considering pulling out all its troops from United Nations peacekeeping missions, starting with Darfur, after a leaked draft U.N. report said Rwandan troops may have committed genocide in Congo.

The Central African nation has some 3,485 soldiers and 143 police officers deployed in Sudan's western Darfur region, according to U.N. figures. The world body says conflict in Darfur has killed as many as 300,000 people since 2003.

The draft U.N. High Commissioner for Human Rights report details some 600 serious crimes committed by various forces from a number of nations in Congo during the 1990s.

However, experts said Rwanda came off worst due to the genocide charge. Rwanda has rejected the allegations in the leaked report as "malicious" and "ridiculous."

U.N. peacekeepers were widely criticized for failing to prevent the 1994 slaughter of 800,000 Tutsis and moderate Hutus in Rwanda that ended only after Tutsi-led fighters under current President Paul Kagame retook control of the country.

Rwanda's army then invaded Congo, ostensibly to hunt down Hutu fighters who had taken part in the killings and fled into eastern Congo, then known as Zaire.