Australia has vowed it will take the “strongest action possible” if Russia has harmed one of its nationals captured fighting for Ukraine, after reports emerged the prisoner of war may have been killed.

Australian Prime Minister Anthony Albanese pledged the "strongest action possible" during a Jan. 15 press conference if reports of an Australian national captured while fighting for Ukraine being executed by Russian forces are confirmed,

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