.Ukraine performs among its own biggest-ever drone strikes on Russia CNNUkraine Strikes Moscow Oil Refinery in Huge Drone Surge The Exchange JournalUkraine launches gigantic drone assault on Russian energy facilities The Washington PostRussia Attacks Kharkiv Sports Core After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.