.Ukraine accomplishes among its own biggest-ever drone strikes on Russia CNNUkraine Strikes Moscow Oil Refinery in Substantial Drone Onslaught The Commercial JournalUkraine catapults massive drone assault on Russian energy framework The Washington PostRussia Hits Kharkiv Athletics Center After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.