Malaysia Airlines said late Thursday it lost contact with a plane over Ukrainian airspace.

MH17 was heading from Amsterdam to Kuala Lumpur on Thursday.

A Ukrainian government adviser Anton Gerashenko said on Facebook that a plane carrying 295 people was shot down over a town in the east of the country.

Nearly 300 were killed when a Malaysian airliner crashed in eastern Ukraine, an adviser to the country's interior minister said on Thursday.

"280 passengers and 15 crew died," Anton Gerashchenko wrote on his Facebook site, reported Reuters.

The airline said on Twitter that more details were coming.

Malaysia Airlines Flight 370 disappeared in March while en route from Kuala Lumpur to Beijing. It has not been found, but the search has been concentrated in the Indian Ocean far west of Australia.

Accoridng to Reuters, Emergency Ministry official on site says body parts scattered around up to 15 km from crash site, at least 100 bodies seen.

Eastern Ukraine separatist leader Alexander Borodai says airliner shot down by Ukrainian govenment forces. Kiev denied involvement.

On the other hand PM Mohd Najib of Malaysia announced on his official twitter account that Malaysia officially started an immediate investigation