Malaysia says a new analysis of satellite data indicates its missing passenger jet crashed in the southern Indian Ocean.
Malaysian Prime Minister Najib Razak said Monday that a more thorough examination of the flight's path, based on satellite data collected by a British company, showed that Malaysia Airlines Flight 370 plunged into the water in a remote location west of Perth.
"It is therefore with deep sadness and regret that I must inform you that flight MH370 ended in the southern Indian Ocean."
He said that relatives of the 239 people on board the planned flight from Kuala Lumpur to Beijing had been told of the fate of the Boeing 777.
His announcement came as an Australian Navy ship tried to locate several objects seen by aircraft searching for the missing plane in the southern Indian Ocean, southwest of Australia.
Australian Prime Minister Tony Abbott says the HMAS Success is at the scene where planes spotted at least two objects floating in the water. He described the first as grey or green and circular, and the second as orange and rectangular.
Earlier Monday, China said its one of its search planes had spotted two "relatively big" floating objects and several smaller white ones scattered over several kilometers of the ocean.
Planes and ships from several countries are searching remote waters 2,500 kilometers southwest of Australia.
In another development, the U.S. Navy says it is sending a black box detector to aid in the search for the plane. The Navy says the "Towed Pinger Locator" could detect the missing airplane's black box to a depth of about 6,100 meters.
The black box recorder contains detailed information about what takes place on an aircraft.
France reported Sunday picking up satellite-generated radar echoes of possible debris in the southern Indian Ocean, similar to earlier satellite photo images collected by Australia and China. That led Australian Prime Minister Tony Abbott to voice the hope that a breakthrough is possible to find the Boeing 777 with 239 people aboard.
The Malaysia Airlines passenger jet disappeared while on a flight from Kuala Lumpur to Beijing. There has been little evidence of what happened to the jet.
Investigators are not ruling out anything, including catastrophic mechanical failure, pilot sabotage or terrorism.
"Based on the new analysis, INMARSAT and AAIB, have concluded that flight MH 370 flew along the southern corridor and that its last recorded position was in the middle of the Indian Ocean west of Perth. Ia remote location far from any landing site. t is therefore with deep sadness and regret that I must inform you that flight MH370 ended in the southern Indian Ocean."