The co-pilot on missing Malaysia Airlines flight 370 spoke the last words to ground controllers before the plane disappeared, the BBC reported.
Malaysia officials say that co-pilot Fariq Abdul Hamid said, with a clam voice, "all right, good night," not long after the plane vanished in the early morning hours of March 8. Police have searched Hamid's home.
Investigators do not know if Hamid, 27 said those words before or after the plane's communication systems were turned off. It is believed the plane's transponder, which sends the aircraft's location, and data reporting system were deliberately turned off.
The 239-passenger Boeing 777 took off from Kaula Lampur headed for Beijing a little after midnight. The plane was last known to be somewhere over the waters between Malaysia and south Vietnam. As of Monday, 26 countries have joined the search for the flight.
A signal from the plane's Aircraft and Communications Addressing and Reporting System was last received at 1:07 a.m.
"We don't know when the ACARS was switched off after that," Malaysia Airlines Chief Executive Ahmad Jauhari Yahy told the BBC. "It was supposed to transmit 30 minutes from there, but that transmission did not come through."
The transponder signal disappeared from air traffic control monitors fourteen minutes later somewhere over the South China Sea, the BBC reported.
Malaysia Prime Minister Najib Razak said radar evidence suggests the plane veered off course and could have flown as far as Kazakhstan.
Search efforts have extended to airspace from the boarder of Kazakhstan and Turkmenistan to northern Thailand. Another search effort is focused on airspace between Indonesia and the Indian Ocean.
"Today, I can confirm that search and rescue operations in the northern and southern corridors have already begun," Malaysian Transport Minister Hishammuddin Hussein said according to the BBC.
Investigators are also looking into the lives of the plane's crew and passengers to see if any had a role in the plane's disappearance. Police have also searched the home of the plane's captain, Zaharie Shah, 53. A flight simulator found in Shah's home is being examined, the BBC reported.
