SYDNEY (AFP) - Australia on Saturday vowed no let up in its quest to prosecute those who shot down Malaysia Airlines flight MH17 over Ukraine, saying Russia's veto of a UN resolution raised further questions about its involvement.
Moscow on Wednesday vetoed a move to establish a special tribunal to try those responsible, while Angola, China and Venezuela abstained.
Eleven of the 15 members of the Security Council voted in favour of the resolution, drafted by Australia, Belgium, Malaysia, the Netherlands and Ukraine.
All 298 passengers and crew on board the Boeing 777 were killed when the Malaysia Airlines plane was blown out of the sky over Ukraine during a routine flight between Amsterdam and Kuala Lumpur on July 17 last year.
Countries including Australia, Britain, France and the US accuse pro-Russian separatist rebels of shooting it down with a Buk surface-to-air missile supplied by Russia.
Moscow denies involvement and blames the Ukrainian military.
"We are absolutely determined to provide answers to those families," Foreign Minister Julie Bishop told Channel Seven of those who died.
The victims were mostly Dutch but included 38 Australian citizens and residents.
"The five nations - the Netherlands, Malaysia, Belgium, Australia and the Ukraine - are determined to continue to find an alternative mechanism.
"We will be meeting again shortly and we will come up with a way that will hold the perpetrators of this atrocity to account."
She added that the importance of tracking down the culprits was broader than just the need for closure for the families of those who died.
"Of course, we're doing this for the families, but the broader international community, civil aviation must be seen to be safe," she said.
"People must be able to put their faith and their trust in commercial airlines and travelling on commercial planes.
"And so, we need to send a very strong message to those responsible for this that they can't hide, that they will be held to account and they will be able to present their response to a court and a court will hold them to account." In defending the veto, Moscow said Russian investigators had been denied equal access to the crash site and criticised what he said would have been criminal prosecution carried out "in a closed fashion".
But Bishop said the reaction raised more questions than answers.
"Surely, if Russia had evidence as to what happened, that was able to point the finger in another direction, why wouldn't Russia want that to be heard before an independent, impartial tribunal that had the backing of the international community through the UN Security Council?" she said.
"So I think that Russia just raised more questions than it answered."