The high-level tripartite meeting began at 1100 AM local (0800 GMT) amid the Antalya Diplomacy Forum in Turkey.
Prior to the meeting on Wednesday, Ukrainian Minister Dmytro Kuleba on social media voiced hope for "talks in good faith, not from a propaganda perspective, but really with the task of finding a solution on how to end the war waged by Russia."
Separately, Turkish President Recep Tayyip Erdogan on Wednesday also expressed hope for the meeting to open doors for a permanent cease-fire.