Australia has vowed to take the “strongest possible action” if it is confirmed that Russian forces have executed one of its captured citizens in Ukraine.

Melbourne private school teacher Oscar Jenkins went to fight for Ukraine last year before being snatched by Russian soldiers.

An Australian man believed to have been taken captive by Russian troops in Ukraine is feared to have been executed.

The Australian government is making "urgent enquiries" after reports suggest a man from the city of Melbourne has been killed by Russian forces. Oscar Jenkins, a 32-year-old teacher, was captured last year while fighting for Ukraine.

Canberra is making "urgent inquiries" about the status of Australian citizen Oscar Jenkins, a volunteer soldier captured by Russia in Ukraine, after unconfirmed reports of his death, the 7News outlet wrote on Jan.

Oscar Jenkins, an Australian teacher fighting for Ukraine, was reportedly captured and interrogated by Russian soldiers. His status and whereabouts are unknown.

Sky News host Sharri Markson says Opposition Leader Peter Dutton has called for “serious repercussions” if Australian Oscar Jenkins was executed by Russia.

Reports have emerged that the Russians may have killed Oscar Jenkins, an Australian citizen who fought for Ukraine and was taken prisoner by the Russians. Australia promises to take "the strongest action possible" if this information is confirmed.

Australia should downgrade diplomatic relations with Russia if the killing of prisoner of war Oscar Jenkins is verified, the nation's Ukrainian community says.

Prime Minister Anthony Albanese has expressed his “grave concern” for Australian man Oscar Jenkins who was captured in Ukraine amid reports he has been executed by Russian forces.