Malaysian naval vessels saw no immediate sign of wreckage when they reached the maritime area off the country's northeast coast where a missing Malaysia Airlines flight last made contact on Saturday, a senior rescue official said. Malaysia has sent three maritime enforcement ships and a navy vessel to the area, backed by three helicopters, a Malaysian Maritime Enforcement Agency official told Reuters. 'Our aircraft asset spotted an orange speck in the sea where the last signal came from. We sent a vessel to search the area and it was confirmed that it was nothing,' the official told Reuters. Beijing-bound flight MH370, operating a Boeing 777-200ER aircraft, last made contact with air traffic controllers 120 nautical miles off the east coast Malaysian town of Kota Bharu, the airline's top official had said earlier.