.Ukraine carries out some of its own biggest-ever drone strikes on Russia CNNUkraine Strikes Moscow Oil Refinery in Substantial Drone Assault The Exchange JournalUkraine dispatches massive drone attack on Russian electricity framework The Washington PostRussia Strikes Kharkiv Athletics Middle After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.