.Ukraine carries out some of its biggest-ever drone assaults on Russia CNNUkraine Attacks Moscow Oil Refinery in Huge Drone Torrent The Exchange JournalUkraine catapults substantial drone strike on Russian energy structure The Washington PostRussia Attacks Kharkiv Sports Midpoint After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.