Brandishing flags and portraits of the man they call "King", protesters demanding regime change in Iran have staged a rally outside the country's embassy in Canberra.
As anti-government protests in their home country face bullets, jail and execution, demonstrators in Australia are calling for democracy to prevail in the Middle Eastern nation.
US President Donald Trump is considering his options after threatening military action if Iran continues killing protesters.
The country's airspace has been closed, except for flights to and from the capital Tehran, with other services diverted around the country.
Foreign Minister Penny Wong said Australia continued to urge people not to travel to Iran, and warned the security situation could deteriorate rapidly.
"We would additionally advise all those in the region to avoid demonstrations and protests," she told reporters on Thursday.
James Younessi, a Sydney doctor who travelled to Canberra to speak at the demonstration, said he would happily move back to his home country if the regime was overthrown.
But he was hesitant about more American intervention in the Middle East.
"I don't want Iran to be indentured to any foreign nation the moment anybody interferes," he told AAP.
"But if it means saving one life for it, we want a measured response that we can have this bloodshed ended.
"If we can stop the bloodshed, if Mr Trump is good to his word, come save us from being killed, then leave us to govern ourselves," Dr Younessi said.
Another protester, Omid Fakhri, who hadn't heard from his family in Iran because of the internet blackout, was more positive about US military action.
"We don't care which military, just a military is fine, as long as they can go in and stop the massacre," he told AAP.
About 100 demonstrators chanted "democracy for Iran" and "King Reza Pahlavi", a reference to the son of the last Shah, who lives in exile in the US and has emerged as a key figure driving the anti-government protests in Iran.
Mr Pahlavi has campaigned for a secular, democratic Iran, but Mr Trump has questioned whether he would have broad support to run the country.
"I don't know whether or not his country would accept his leadership, and certainly if they would, that would be fine with me," the US president told Reuters.
Some protesters outside the now-vacant Iranian embassy wore red caps emblazoned with "Make Iran Great Again", and one carried a poster reading "Long live the Shah".
A massive "lion and sun" flag was also brought in - the historic flag of Iran until the Shahs were overthrown in the 1979 Islamic revolution.
The Iranian ambassador to Australia and his staff were expelled in 2025 after spy agency ASIO accused Tehran of orchestrating arson attacks on a synagogue and a Jewish catering company.
