.Ukraine carries out among its own biggest-ever drone strikes on Russia CNNUkraine Hits Moscow Oil Refinery in Huge Drone Onslaught The Commercial JournalUkraine catapults large drone assault on Russian energy framework The Washington PostRussia Hits Kharkiv Athletics Midpoint After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.