A Vietnamese helicopter discovered two oil slicks in waters off the coast of Vietnam after a Malaysia Airlines plane an hour into the flight from Kuala Lumpur to Beijing went missing early Saturday, an official said Sunday.The oil slicks were spotted at the suspected area where the plane went missing, the official with the search operation confirmed Sunday, Xinhua reported.The Malaysia Airlines flight MH370, a Boeing 777-200ER, carried 239 people on board, including five Indians, 154 Chinese and 38 Malaysians. It lost contact with air traffic controllers an hour after take-off from Kuala Lumpur Saturday.There is still no confirmed information about the fate of the plane after about 36 hours since it lost contact with ground controllers.