.Ukraine performs one of its own biggest-ever drone attacks on Russia CNNUkraine Hits Moscow Oil Refinery in Massive Drone Barrage The Commercial JournalUkraine launches large drone assault on Russian electricity facilities 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.