Nyala, where the early Sunday morning attack occurred, is about 300 kilometers (185 miles) south of Kutum.

CNN: STORY HIGHLIGHTS

Chris Cycmanick, head of media relations for UNAMID, told CNN that many people had fled Kutum as well as the Kassab camp.

CNN: STORY HIGHLIGHTS

In its weekly bulletin, the OCHA said it had "received reports of looting of houses of displaced people, markets and businesses" in the camp and Kutum town.

CNN: STORY HIGHLIGHTS

Members of the Sudanese Armed Forces removed the "armed tribesmen" from Kutum town last Saturday, but the militiamen returned a day later to fight again, the OCHA said.

CNN: STORY HIGHLIGHTS

Security continued to deteriorate over the following days in Kutum town, Kassab camp and another camp, Fataborno, "including fighting between the armed elements and government forces, as well as looting and displacement of civilians, " it said.

CNN: STORY HIGHLIGHTS

Conditions for the refugees now in Kutum are poor, with the majority of those displaced from the camp living in open areas without basic services, such as clean water, food, sanitation facilities and health care, UNAMID said Friday.

CNN: STORY HIGHLIGHTS