.Ukraine performs among its biggest-ever drone strikes on Russia CNNUkraine Attacks Moscow Oil Refinery in Enormous Drone Onslaught The Wall Street JournalUkraine catapults huge drone strike on Russian energy infrastructure The Washington PostRussia Strikes Kharkiv Athletics Center After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.