.Ukraine carries out some of its biggest-ever drone attacks on Russia CNNUkraine Strikes Moscow Oil Refinery in Large Drone Blast The Exchange JournalUkraine catapults enormous drone assault on Russian power commercial infrastructure The Washington PostRussia Hits Kharkiv Athletics Core After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.