March 14: Search for the missing Malaysia Airlines plane is expanded to the Indian Ocean based on new but inconclusive information about the aircraft, the White House says. March 14: Chinese researchers detect a "seafloor event" in the waters between Malaysia and Vietnam, an area suspected to be linked with the plane's disappearance. March 14: 57 ships and 48 aircraft involving 13 countries are engaged in the search. March 15: Investigators conclude that the flight MH370 was hijacked. According to the reports, the communication devices might have been deliberately switched off and the hijackers might have turned the flight around. March 15: It is reported that a British satellite system operated by Inmarsat received an automated signal from flight MH370 at least five hours after the plane was reported lost.