Australia will send 8,000 COVID-19 vaccines to Papua New Guinea next week.
PNG is in the midst of a second COVID-19 wave, with more than 14 hundred active cases, although the real figure is expected to be significantly higher.
"It is also true that the escalation of issues with the virus in PNG presents very real risks to Australia as well," said Prime Minister Scott Morrisson.
He said the risks were particularly high in Queensland and the Torres Strait.
Australia is calling on AstraZeneca and European authorities to divert another 1 million doses to the nation.