.Ukraine carries out some of its own biggest-ever drone assaults on Russia CNNUkraine Hits Moscow Oil Refinery in Massive Drone Surge The Commercial JournalUkraine launches huge drone strike on Russian electricity facilities The Washington PostRussia Hits Kharkiv Athletics Core After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.