Ukraine will make securing a ceasefire a priority in expected talks with a Russian delegation in Istanbul on Friday, a Ukrainian diplomatic source said, adding there was also a need for "confidence-building measures".

Ukraine and Russia engage in peace talks in Istanbul, agreeing on a prisoner swap but no ceasefire. Explore the outcomes and next steps.- Watch Video on English Oneindia

The meetings, held in Istanbul and hosted by Turkey, lasted less than two hours. The only agreement reached was to exchange 1,000 prisoners as a confidence-building measure.