(CNN) -- Armed men attacked a displaced persons camp in the eastern Democratic Republic of Congo early Sunday, raping women and looting at a facility where tens of thousands of people have taken refuge, a U.N. official said. Simplice Kpandji, a spokesman for the United Nations' refugee agency, said it was unclear whether anyone had been killed at the camp, which is about 10 kilometers from Goma, the border city that has been a flashpoint for fighting between government troops and the M23 rebel group. The Mugunga III camp houses more than 30,000 displaced people, many of whom fled to the camp when rebels advanced on Goma, Kpandji said. The attackers' identity was unknown, he said, and officials were working on gathering more information.
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It is unclear whether anyone was killed in the attack, a U.N. official says
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Attackers looted a displaced persons camp and raped women there, the official says
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The attack comes after U.N. monitors confirm that rebels have withdrawn from Goma
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The rebels were told by regional leaders to withdraw at least 12 miles from the city
The rebel group has been accused of widespread looting by the @placeholder and Goma residents.