.Ukraine accomplishes some of its own biggest-ever drone attacks on Russia CNNUkraine Hits Moscow Oil Refinery in Gigantic Drone Torrent The Wall Street JournalUkraine catapults huge drone assault on Russian electricity infrastructure The Washington PostRussia Strikes Kharkiv Athletics Core After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.