.Ukraine performs one of its own biggest-ever drone strikes on Russia CNNUkraine Attacks Moscow Oil Refinery in Extensive Drone Plethora The Wall Street JournalUkraine dispatches substantial drone attack on Russian energy framework The Washington PostRussia Hits Kharkiv Sports Core After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.