.Ukraine performs one of its biggest-ever drone attacks on Russia CNNUkraine Hits Moscow Oil Refinery in Large Drone Blast The Wall Street JournalUkraine launches extensive drone strike on Russian energy commercial infrastructure The Washington PostRussia Strikes Kharkiv Athletics Midpoint After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.