''All right, good night.''

These were the last words from the missing Malaysia Airlines flight MH370, revealed for the first time at a meeting in Beijing on Wednesday between the Malaysian government and Chinese relatives.

The flight then disappeared from radar screens, according to Malaysia's civil aviation officials at the meeting fronted by its envoy to China, Datuk Iskandar Sarudin, and held in a packed room with nearly 400 relatives at the Metropark Lido hotel.

Five days after the plane vanished above the South China Sea authorities in Kuala Lumpur have also revealed a military radar may have recorded the aircraft several hundred kilometres off course in the Malacca Strait.