.Ukraine performs one of its biggest-ever drone strikes on Russia CNNUkraine Hits Moscow Oil Refinery in Extensive Drone Assault The Exchange JournalUkraine dispatches enormous drone assault on Russian electricity framework The Washington PostRussia Strikes Kharkiv Athletics Center After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.