.Ukraine carries out some of its biggest-ever drone strikes on Russia CNNUkraine Hits Moscow Oil Refinery in Substantial Drone Barrage The Commercial JournalUkraine catapults massive drone assault on Russian power infrastructure The Washington PostRussia Hits Kharkiv Athletics Middle After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.