[1/3] Andrei Medvedev, a former commander of Russia's Wagner mercenary group poses for a picture during an interview in Oslo, Norway February 1, 2023. Andrei Medvedev, who fled by crossing the Russian-Norwegian border on Jan. 13, says he witnessed the killing and mistreatment of Russian prisoners taken to Ukraine to fight for Wagner. Medvedev said he wanted to speak out about his experiences in the war so "the perpetrators are punished" for their crimes in Ukraine. A special report published by Reuters last week found a graveyard in southern Russia buried with men who were convicts who had been recruited by Wagner to fight in Ukraine. Kripos, Norway's national criminal police service, which has responsibility for investigating war crimes, has begun questioning Medvedev about his experiences in Ukraine.

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