.Ukraine accomplishes one of its own biggest-ever drone assaults on Russia CNNUkraine Hits Moscow Oil Refinery in Enormous Drone Blast The Wall Street JournalUkraine dispatches large drone assault on Russian energy structure The Washington PostRussia Attacks Kharkiv Sports Middle After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.