Russia and Ukraine carried out an exchange of prisoners of war on Monday involving POWs under the age of 25 and others who had been severely wounded, the start of what could become the biggest swap of the war so far.

Ukraine confirms Russia returned bodies of its soldiers disguised as Ukrainian A senior Russian official on June 19 inadvertently confirmed the staggering troop losses incurred by Moscow's forces during its full-scale invasion of Ukraine.

A large-scale prisoner exchange between Russia and Ukraine – the only concrete outcome of peace talks – was thrown into doubt on Saturday local time after Moscow and Kyiv accused each other of delaying and thwarting the swap.