Ukraine said it struck a Russian air base on Saturday, while Russia continued to attack Ukraine with hundreds of drones overnight as part of a stepped-up bombing campaign that has dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.

Russia launched 550 drones and missiles across Ukraine overnight in the largest aerial assault since the war began. The capital Kyiv was the primary target.

Russia overnight hit Ukraine with the biggest missile and drone attack since the start of the war, launching a record number of drones at Kyiv.Over 500 drones were launched into Ukraine, the second time in less than a week that Russia has launched a major attack on the country.