A gas pipeline ruptured and exploded near the village of Rostovka in Russia's Omsk district on 18 November, triggering a fire that shot flames high into the sky, regional governor Vitaly Khotsenko said.
It still remains unclear if Ukraine was involved in the explosion at Russia's biggest oil refinery, located over 2,000 km (1242 miles) from the Ukrainian border, but this incident comes amidst increased Ukrainian drone attacks on Russian oil infrastructure.