Ukraine’s capital Kyiv came under a large-scale Russian drone and missile attack overnight into Saturday, just hours after Russia and Ukraine began a major prisoner exchange.

Russia and Ukraine have exchanged hundreds more prisoners as part of a major swap that amounted to a moment of cooperation in otherwise failed efforts to reach a ceasefire.

Ukraine has secured the release of 307 Ukrainians from Russian captivity in the second phase of its largest prisoner exchange with Russia, President Volodymyr Zelensky announced on May 24.