Malaysian Leader Says Flight 370 Ended in Ocean

By THOMAS FULLER and CHRIS BUCKLEY

PEARCE AIR FORCE BASE, Australia — Malaysia’s prime minister said Monday that further analysis of satellite data confirmed that the missing Malaysian airliner went down in the southern Indian Ocean. The announcement narrowed the search area but left many questions unanswered about why it flew to such a remote part of the world.

Experts had previously held out the possibility that the jet could have flown north instead, toward Central Asia, but the new data showed that it could have gone only south, said the prime minister, Najib Razak.

Mr. Najib appeared eager to bring closure to the families of the passengers on Malaysia Airlines Flight 370, two-thirds of whom are Chinese. The families have grown increasingly angry about the lack of clear information about the plane’s fate. The Boeing 777, with 227 passengers and 12 crew members onboard, was headed from Kuala Lumpur to Beijing when it disappeared on March 8.

The aircraft’s last known position, according to the analysis, “is a remote location, far from any possible landing sites,” Mr. Najib said. “It is therefore with deep sadness and regret that I must inform you that, according to this new data, Flight MH370 ended in the southern Indian Ocean.”

The new analysis of the flight path, the prime minister said, came from Inmarsat, the British company that provided the satellite data, and from Britain’s air safety agency. The company had “used a type of analysis never before used in an investigation of this sort,” he said.