The delivery of Bushmaster vehicles promised to Ukraine remains on track and is not been held up by red tape, Australia's defence minister says.
Ukraine has asked for further Bushmasters, artillery and access to Hawkei protected light vehicles from Australia.
Defence Minister Richard Marles says Australia will continue to support Ukraine as the war shows signs of becoming protracted.
"There's a schedule of delivery to Ukraine which is on time, and the Ukrainians are very appreciative of the speed with which Bushmasters are being delivered," he told Sky News on Sunday.
"We're working with the Ukrainian government about how we can provide support over the long term.
Mr Marles said the aim of the support was to "enable Ukraine to ultimately end this conflict".
He also dismissed suggestions from the opposition that further support may be being held up by red tape in the defence department.
"It's not been held up and certainly, there's no complaint coming from Ukraine," he said.
It comes as Russia holds referendums in occupied Ukrainian territories as it tries to legitimise the annexation of four regions.
Ukraine and the international community, including Australia, have labelled the vote a sham, with Kyiv saying residents had been coerced.
The referendums were organised by Moscow after Russian forces lost ground in Ukraine's northeast following a large counter-offensive.
President Vladimir Putin has threatened nuclear retaliation in response to any encroachment on Russian territory.
Mr Marles branded the comments as "appalling".
"Comments we've seen from Vladimir Putin in the last few days, which speak to the behaviour of Russia, cannot be allowed," she said.
"The mobilisation of the 300,000 reservists in Russia is a step in completely the wrong direction.
"Russia needs to stop and Russia needs to leave Ukraine."
