The Malaysian PM just finished a press conference, took no questions. Some quick take aways from scribbled notes, this is what I thought I heard:
Said human intervention was likely but still declined to say it was hijacking. One continuing focus of the investigation is the pax and crew given the latest developments.
Said there was a new northern search corridor toward Kazakhstan, Turkmenistan and Northern Thailand, and a southern search corridor toward Indonesia and the South Indian Ocean.
The military primary radar correlates with the satellite provider information, the track of the unknown aircraft flying back over peninsular Malaysia was indeed MH 370. ACARS was switched off before the transponder as the aircraft first left the Malaysian coast outbound.
Last satellite transmission received from MH 370 was at 8:11 am (!). Wow, this is new.