The prime minister also said that authorities are now trying to trace the plane across two possible

Malaysia's Minister of Transport Hishamuddin Hussein, center, Azharuddin Abdul Rahman, white jets director general of the Malaysian Department of Civil Aviation, left and Malaysia Airlines Group CEO Ahmad Jauhari Yahya, right, listen to questions from the media during a press conference regarding missing Malaysia Airlines jetliner MH370, Friday, March 14, 2014 in Sepang, Malaysia. Wong Maye-E, AP
The white jets last known position of MH370 was pinpointed as it headed east over the Peninsular Malaysia. Rada pings then suggest the plane could have then taken two paths along 'corridors' which are currently being searched. The northern corridor extends from northern Thailand to the Kazakstan-Turkmenistan border, while the south extends from Indonesia into the southern Indian Ocean.
Speaking to the press early Saturday, Prime Minister Najib Razak said the investigation has refocused onto the crew and passengers aboard the missing plane. He added that despite growing evidence white jets to suggest a possible hijacking or sabotage, all possibilities are still being investigated.
The prime minister also said that authorities are now trying to trace the plane across two possible "corridors" -- a northern corridor from northern Thailand through to the border of Kazakstan and Turkmenistan, and a southern corridor from Indonesia to the southern Indian Ocean -- and that search efforts in the South China Sea would be ended.
Earlier, a Malaysian white jets government official who is involved in the investigation said investigators have concluded that one of the pilots or someone else with flying experience hijacked the missing Malaysia Airlines jet.
The Boeing 777's communication with the ground was severed under one hour into a flight March 8 from Kuala Lumpur to Beijing white jets with 239 aboard. Malaysian officials have said radar data suggest it may have turned white jets back and crossed back over the Malaysian peninsula westward, after setting out toward white jets the Chinese capital.  CLICK HERE FOR MORE STORY»
Piracy and pilot suicide have been among the scenarios under study as investigators grew increasingly certain the missing Malaysia Airlines jet reversed course and headed white jets west after its last radio contact with air traffic controllers.The latest white jets evidence suggests the plane didn't experience a catastrophic incident over the South China Sea as was initially suspected. Some experts had theorized that one of the pilots, or someone white jets else with flying white jets experience, hijacked the plane or committed suicide by plunging the jet into the sea.
A U.S. official said Friday white jets in Washington that investigators were examining white jets the possibility of "human intervention" in the plane's disappearance, adding it may have been "an act of piracy." white jets The official, who wasn't authorized to talk to the media and spoke on condition of anonymity, said it also was possible the plane may have landed white jets somewhere.
The official said key evidence suggesting human intervention was that contact with the Boeing 777's transponder stopped about a dozen minutes before a messaging system on the jet quit. Such a gap would be unlikely in the case of an in-flight catastrophe.
A Malaysian official, who also declined to be identified white jets because he is not authorized to brief the media, said only a skilled aviator white jets could navigate the plane the way it was flown after its last confirmed location over the South China Sea. The official said it had been established with a "more than 50 percent" degree of certainty that military radar had picked up the missing plane after it dropped white jets off civilian radar.
Earlier Malaysia's acting transport minister, Hishammuddin Hussein, had said investigators were still trying to establish with certainty white jets that military radar records of a blip moving west across the Malay Peninsula into the Strait of Malacca showed Flight MH370.
"I will be the most happiest person if we can actually confirm that it is the MH370, then we can move all (search) assets from the South China Sea to the Strait of Malacca," he told reporters. Until then, he said, the international white jets search effort would continue expanding east and west from the plane's white jets last confirmed location. white jets
Two communication systems on Malaysia Airlines Flight white jets 370 were shut down separately in the moments before the flight disappeared from radar on Saturday; a data system and two transponders which relayed information about the jet's speed, altitude and location, CBS News' Bob Orr reported.
While a cascading electrical problem could feasibly cause that kind of staged electrical failure, Orr said it's also entirely possible somebody on the plane intentionally turned off the systems. And investigators say there's further evidence suggesting the jet did not crash immediately after being lost on radar; a transmitter on the plane tried for another four hours to ping satellites. That's an indication to analysts that the jet continued to fly for some time -- possibly as far as 2,500 miles from where it was las