.Ukraine performs some of its biggest-ever drone strikes on Russia CNNUkraine Attacks Moscow Oil Refinery in Extensive Drone Blast The Wall Street JournalUkraine launches massive drone strike on Russian energy facilities The Washington PostRussia Strikes Kharkiv Sports Midpoint After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.