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

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.