Ukraine launched drone attacks on Russia’s Kushchevsk military airfield in the southern Krasnodar region, as well as two oil refineries, a source with knowledge of the operation told CNN.

Russia launched a barrage of missiles against Ukraine overnight, in attacks that appeared to target the country’s energy infrastructure. Meanwhile, Russia said its air defense systems had intercepted more than 60 Ukrainian drones over the southern Krasnodar region.

Russia sent missiles against Ukraine's energy facilities and damaged a mental health hospital in Kharkiv. Kyiv launches drones at southern Russia.

As Russian missiles streaked through the skies above Ukraine before dawn on Saturday, once again targeting the nation’s already battered energy grid in a broad and complex bombardment, Ukrainian drones were flying in the other direction,

Russia attacked Ukrainian energy facilities in three regions on Saturday, damaging equipment and injuring at least one energy worker, Ukrainian Energy Minister German Galushchenko said. Galushchenko said on the Telegram messaging app that the Russian strikes targeted the Dnipropetrovsk region in central Ukraine and the western regions of Lviv and Ivano-Frankivsk.