Turkey believes a ceasefire must first be secured between Russia and Ukraine before it and other states take any decisions on a peacekeeping mission as part of security guarantees for Ukraine, a defence ministry source said on Thursday.

While Ankara may commit itself to sending troops as part of security guarantees, Russia's approval is more important than European plans

Erdogan also told Putin he was closely following developments related to the process, and that Turkey had strived for a just peace since the beginning of the war, it said.