UNITED NATIONS (AP) — Preliminary investigations by the U.N. peacekeeping force in Congo indicate that Congolese army soldiers committed rapes, looting and other human rights violations after they retreated from the key city of Goma following its capture by M23 rebels, the United Nations said Friday.

The U.N. mission could not confirm reports that 72 rapes were committed in the Minova area, about 60 kilometers (40 miles) south of Goma, but its initial investigation found that several violations, including rape and looting, were committed by Congolese army elements, U.N. deputy spokesman Eduardo del Buey said.