Mumbai's worst fears are coming true. MV Rak, the vessel that sank off the coast of Mumbai on Thursday, is now leaking oil. The leak has occurred due to the ingress of water in the cargo hull, officials said. "Since last night, oil has been observed leaking from the sunken vessel Rak Carrier at an approximate rate of 1.5 to 2 tonnes per hour. The oil has spread about seven nautical miles around the vessel", a Defence press release said.