Australia has summoned Russia’s ambassador to the country over reports that a Melbourne man was killed after being captured while fighting for Ukraine. Anthony Albanese said on Wednesday that his government was “gravely concerned” about Oscar Jenkins, a 32-year-old teacher, who was captured by Russian forces last year.

Soldiers who served alongside Oscar Jenkins in the Ukrainian armed forces say they are convinced their Australian comrade was killed by Russia's military shortly after being captured last year.

Herald has revealed Australian Oscar Jenkins, who was taken captive by Russian forces in the Donbas region of Ukraine last month, was tortured “for days” before he was killed.

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

How Australian Oscar Jenkins, a regular civilian working as a biology teacher, ended up fighting alongside seasoned commandos in the Ukrainian International Legion.

Retired United States General Jack Keane has weighed in on unconfirmed reports an Australian fighting for Ukraine, who was captured by Russian forces late last year, has been executed.

The government is considering diplomatic retaliation if reports that Melbourne man Oscar Jenkins has been killed in Ukraine by Russian forces are confirmed.

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

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

Australia has pledged to take the "strongest action possible" if Russia is found to have deliberately harmed one of its citizens who was fighting alongside Ukrainian forces. Oscar Jenkins was captured last month by Russian troops,

Australia's Prime Minister Anthony Albanese responded on Wednesday to the alleged death of Oscar Jenkins, a Melbourne man captured while fighting for Ukraine, swearing to take 'the strongest action