Fifteen crew members on a passenger ferry in Zanzibar were rescued on Saturday after a fire broke on board, emergency services said. No one was harmed in the blaze, but the MV Serengeti, which at the time was moored off Zanzibar Town, capital of the Tanzanian archipelago, was completely destroyed. The Zanzibar shipping registrar Abdallah Mohamed and local police said the fire broke out as workers were welding in the engine room.