WISMAR, Germany - Malaysian Prime Minister Najib Razak has said the country wants to see firm action taken against those responsible for the downing of Malaysia Airlines flight MH17, Malaysia's Bernama news agency reported.

Datuk Seri Najib was responding to the findings announced by international prosecutors on Wednesday (Sept 28) in Netherlands that the missile which downed the plane was Russian-made and fired from rebel-controlled territory in eastern Ukraine.

"Based on the two findings, Malaysia wants firm action to be taken. We have promised that those who were responsible for the downing of the aircraft will be brought to justice," he was quoted saying by Bernama.

"We owe it to the families. The families want justice. So we will pursue this," he added.

Mr Najib said he would call for a meeting with the Netherlands and Australia - two countries which also lost citizens in the 2014 crash. The three countries would then decide on their next course of action.

MH17, a Boeing 777 airliner, crashed over rebel-held eastern Ukraine in July 2014, killing all 298 people on board. Many of the passengers were Dutch citizens.

The plane had been en route from Amsterdam to Kuala Lumpur.