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.

Ukraine said Saturday it struck a Russian airbase that military officials called a "home base" of some fighter jets.

The drones were launched from Oryol, Millerovo, and Primorsko-Akhtarsk in Russia. Air defense operated in the eastern and southern oblasts. Read also: Russia can not sustain nightly swarms of 500 drones — Budanov The Air Force data indicated that 22 drones were shot down by direct fire means,