U.N. radio says at least 90 people are confirmed dead after a logging boat sank on a lake in Congo.

A survivor, Ewiya Mukana, told Radio Okapi on Saturday that dozens of corpses were spread on the sand along the shores of Lake Maindome, 250 miles northeast of the capital, Kinshasa.

Radio Okapi quoted a local authority as saying it did not receive a manifest because the timber-carrying vessel was not allowed to carry passengers.

The Congolese Red Cross told the station that more than 250 survivors had been rescued following the sinking Wednesday night.

Congo is a vast country of jungles and huge rivers in Central Africa with little more than 300 miles of paved road. Many people prefer to take boats even if they do not know how to swim.