Emotional moment Ukrainian prisoner tells mum he loves her after swap with Russia / Russia/Ukraine: Ukrainian prisoners of war 'entirely at the mercy' of Russian captors - new testimonies / Russian executions of Ukrainian POWs part of systematic policy, FT investigation reveals / Russia's executions of Ukrainian prisoners point to systematic policy / "You torture Russians, too" UN says, as skeletal Ukrainian prisoners of war return from captivity / Ukrainian intel: Up to 180,000 Russian prisoners recruited for war in Ukraine / Russia to continue gathering evidence about Kiev's chemical crimes -- diplomat / UN-backed experts: Russia's torture of Ukrainian civilians, prisoners is a crime against humanity / UN: Sexual violence against Ukrainian male detainees widespread in Russian custody