Quote from New Straits Times Online, August 9, 2014:

"Flight Mh-17 Unlikely Shot Down By Fighter Jets: Hishammudden."

"Defence Minister ...Hishammudden Hussain today denied reports in the social media that Malaysia Airlines (MAS) Flight MH-17 was shot down by fighter jets.
He said intelligence and evidence gathered from the fragments of the ill-fated aircraft clearly showed it was shot down by missiles that were launched to the air from the ground. ....
"Whether these were owned by Ukraine or the Rebels who supplied by Russia, the bullets must have come from BUK System and this matter cannot be denied by Europe, NATO, or Russia, he told reporters ...."

He advised people not to be easily influenced by speculation and rumours being spread in the media social.
http://www.nst.com.my/node/21682

The report about the fighter jet did not come from the Malaysian government.