Missing Malaysian Plane #MH370 Latest: New satellite data shows missing jet crashed in the southern Indian Ocean with NO SURVIVAL

Malaysia Airlines Flight 370 went down over the southern Indian Ocean, Malaysian Prime Minister Najib Razak said Monday, citing a new analysis of satellite data by a British satellite company and accident investigators, and apparently ending hopes that anyone survived.

A relative of a missing passenger briefed by the airline in Beijing said, "They have told us all lives are lost."

The Prime Minister based his announcement on what he described as unprecedented analysis of satellite data sent by the plane by British satellite provider Inmarsat and the British Air Accidents Investigation Branch. He didn't describe the nature of the analysis.

But he said it made it clear that the plane's last position was in the middle of the remote southern Indian Ocean, "far from any possible landing sites."

He begged reporters to respect the privacy of relatives.

"For them, the past few weeks have been heartbreaking," he said. "I know this news must be harder still."

The Prime Minister's statement came after the airline sent a text message to relatives saying it "deeply regrets that we have to assume beyond any reasonable doubt that MH370 has been lost and that none of those onboard survived."