Russian and Ukrainian negotiators began face-to-face talks in Istanbul on Tuesday. The two sides were welcomed by Turkish President Recep Tayyip Erdogan who urged them to "put an end to this tragedy"
The new round of talks comes after the Russian army said it would begin focusing on eastern Ukraine in a move some analysts saw as a scaling back of Moscow's ambitions.
Russia's month-old invasion of Ukraine, the biggest European conflict since World War Two, has seen over 3.8 million Ukrainians flee abroad, left thousands dead or injured and isolated Russia's economy.