VILANKULO, Mozambique (AP) _ Floods have left 6,000 people homeless and 23 dead in central Mozambique, said a United Nations report released Monday.

The U.N. Office for the Coordination of Humanitarian Affairs estimated that about 70,000 people have been affected by the flooding, a lower figure than previously reported by the Mozambican government and rescue officials from South Africa.

Immediate health care is needed in isolated areas, the report said.

Flooding has blocked Mozambique's main north-south highway.

Water has receded from sections of the road, leaving massive craters behind, the U.N. report said. Mozambican authorities have started repair work on the highway in an effort to bring relief to isolated areas, officials said.