Ukrainian President Volodymyr Zelensky arrived in Turkey on Thursday to underscore his commitment to ending the war, as his Russian counterpart Vladimir Putin stayed away, sending a junior delegation instead.

Delegations from Ukraine and Russia traveled to Turkey Thursday for peace talks, but while Ukrainian President Volodymyr Zelenskyy was present, his Russian counterpart Vladimir Putin stayed away, prompting criticism from Western officials that the Kremlin isn’t serious about the efforts to end the war.

Neither Russian President Vladimir Putin nor U.S. President Donald Trump look likely to attend peace talks that were due to be held in Turkey on Thursday.