A survivor was found alive inside the capsized Tanzanian ferry in an air pocket on the third day of a grim recovery operation as the death toll from the disaster passed 200.

An engineer was found near the engine of the vessel, Mwanza regional commissioner John Mongella told reporters on Saturday, after the MV Nyerere sank on Thursday near Ukerewe island on the Tanzanian side of Lake Victoria.

Four navy divers heard sounds that suggested signs of life early on Saturday. They pulled the man out of the overturned ship and he was rushed to hospital.

The man shut himself into the engine room and found an air pocket that managed to keep him alive, the Tanzanian Broadcasting Corporation reported. His condition was not immediately known.

The rescue brought the number of survivors of the disaster to 41.

Bodies continued to float to the surface around the vessel on Saturday. The death toll rose to 209, public radio reported.

While the cause of the accident was not immediately clear, overloading is frequently to blame for such incidents. The vessel’s capacity was said to be 100 but state television, citing witnesses, reported more than 200 people were on board the ferry.