Russian and Ukrainian officials met in Istanbul on May 16
Kyiv has conceded it may only be able to get territory taken by Russia through diplomacy, not fighting
Moscow and Kyiv are holding direct negotiations for the first time in three years
US President Donald Trump has urged Russia and Ukraine to reach a deal to end to Moscow's three-year invasion
Moscow does not disclose how many of its soldiers have been killed
The Ciragan Palace where the Istanbul talks were held
US President Donald Trump (C) wants both Russian President Vladimir Putin (L) and Ukrainian President Volodymyr Zelensky (R) to come to the ta…
Ukrainian Defence Minister Rustem Umerov (C), who led his country's delegation, called for a next meeting to take place before the end of June
Russia's lead negotiator Vladimir Medinsky said both sides agreed another big prisoner swap
Tens of thousands have been killed since Russia launched its full-scale invasion of Ukraine