But plane's last suspected flight path, which are yet to be officially released, is leading some officials to believe that it could have been commandeered, reports said.
Emerging Details
According to a New York Times report, Malaysian military radar spotted an aircraft around the time and location of the vanished MH370 which appeared to climb to 45,000 feet, then dropped to 40,000 feet.
MH370 was flying northwards from Malaysia towards Vietnam, and the tracked flying object turned back towards Malaysia.
Nearing Malaysia's Penang Island, it had dropped down to 23,000 feet, changed direction, then climbed, flying over the Indian Ocean towards Andaman and Nicobar Islands in India.
The plane's transponder which is supposed