Oscar Jenkins, a former school teacher from Melbourne, was seen being struck by a Russian interrogator in a video posted in December. View on euronews

Australian Prime Minister Anthony Albanese promised the "strongest action possible" if reports of an Australian national being executed by Russian forces while fighting for Ukraine are verified, CNN reports.

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.