.Ukraine performs among its own biggest-ever drone assaults on Russia CNNUkraine Attacks Moscow Oil Refinery in Large Drone Assault The Wall Street JournalUkraine catapults enormous drone attack on Russian electricity commercial infrastructure The Washington PostRussia Strikes Kharkiv Sports Center After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.