The Ukrainian capital has been struck by a large-scale Russian drone and missile attack that left at least 15 people injured, officials said. Explosions and machine gun fire were heard throughout Kyiv from Friday night into Saturday morning as many people sought shelter in subway stations.

Russia and Ukraine exchanged hundreds more prisoners on Saturday as part of a major swap that amounted to a rare moment of cooperation in otherwise failed

Russia battered Ukraine overnight with its largest drone attack since the war began, Ukraine’s military said Sunday, ahead of an expected phone call between US President Donald Trump and Russian President Vladimir Putin on ending hostilities.

Russia on Friday accused Ukraine of launching a massive wave of drone attacks against non-military targets in Moscow and other regions in the last three days and said it would respond, but said it was still committed to holding peace talks.

Russian air defense systems shot down 105 Ukrainian drones overnight on May 22, including 35 intercepted over Moscow Oblast, the Russian Defense Ministry claimed. Moscow Mayor Sergei Sobyanin said that all the drones were flying toward the Russian capital.