Ukraine and Russia agreed at talks in Istanbul on Monday next week to give each other lists of people they want included in a planned prisoner of war swap, Ukrainian President Volodymyr Zelenskiy said.

Russia and Ukraine have completed the first phase of what is expected to be the biggest prisoner exchange since the start of the war, with almost 800 people released on Friday.

Russia and Ukraine agreed to a new prisoner exchange after their delegates met for a second round of renewed peace talks in Istanbul on Monday, but there was no sign the warring sides were any closer to reaching a ceasefire deal than they were when direct negotiations were restarted a month ago.