Ukraine's drone strikes have knocked out up to 25% of Russia's refining capacity, sparking fuel rationing and oil price pressures that could ripple into

Ukraine's strikes on 10 of Russia's largest refineries have deepened the fuel shortage, with restrictions covering most regions and the crisis affecting around 50 million Russians.

Ukrainian drones are plunging ever deeper into Russian territory, knocking out more refining capacity and forcing Moscow to take unprecedented measures.