.Ukraine accomplishes one of its own biggest-ever drone attacks on Russia CNNUkraine Hits Moscow Oil Refinery in Gigantic Drone Blast The Exchange JournalUkraine launches massive drone strike on Russian power structure The Washington PostRussia Attacks Kharkiv Athletics Middle After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.