Ukrainian drones struck multiple targets deep inside Russia early morning on Friday, May 8, setting ablaze a major oil refinery in Yaroslavl and triggering explosions near military-linked industrial facilities in Rostov-on-Don, according to Russian monitoring channels and OSINT analysts. The strikes came just hours after the Kremlin’s self-declared May 8-10 “Victory Day ceasefire ” officially came into effect. JOIN US ON TELEGRAM Follow our coverage of the war on the @Kyivpost_official . Russia’