.Ukraine executes one of its own biggest-ever drone attacks on Russia CNNUkraine Strikes Moscow Oil Refinery in Massive Drone Barrage The Exchange JournalUkraine catapults gigantic drone assault on Russian energy structure The Washington PostRussia Strikes Kharkiv Sports Middle After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.