On June 18, 2026, Ukrainian drones struck a major oil refinery in Moscow, sparking a fire and injuring 16 people, according to Reuters and the Moscow region governor. The attack targeted the Moscow Oil Refinery in the Kapotnya district. Moscow's mayor confirmed the strike happened.

This is the second time in three days that Ukrainian drones hit this same refinery. That matters because it shows Ukraine is deliberately targeting this facility, not just attacking it by chance. The refinery sits in Moscow itself—not in a far-away region, but within the city limits. This means Ukrainian drone pilots had to fly their aircraft through one of the world's most heavily defended airspaces.

Russia said its air defences shot down 555 Ukrainian drones overnight on June 17–18, according to Al Jazeera. That would be one of the largest drone attacks of the war. Yet the refinery fire still happened—thick black smoke was visible over Moscow—which means at least some drones got through Russia's defences.

Why Target Oil Refineries?

Ukraine has been hitting Russian oil facilities for months. In early June, according to the Kyiv Independent, President Zelensky said Ukrainian forces struck an oil terminal in St. Petersburg, Russia's second-largest city. That attack came shortly after Russia launched a big strike on the Ukrainian capital, Kyiv.

The strategy is straightforward: damage Russia's oil refining capacity so there's less fuel for Russia's military and population. It also sends a message—that even Moscow isn't safe from Ukrainian attacks. Before this war, Moscow felt far from danger.

What This Says About Ukraine's Drones

Ukraine's drones have gotten much better since 2022. They now have backup navigation systems that still work even when Russia tries to jam their GPS signals—think of it like having a backup map when your phone loses signal. Ukraine appears to be launching hundreds of drones at once to overwhelm Russia's air defences through sheer numbers. Hitting the same refinery twice in three days suggests Ukrainian operators may have found weak spots in how Moscow's defences are set up.

Russia claims high success rates in shooting down drones, but those claims are hard to verify. What we know for sure is that despite Russia's defences, Ukrainian drones still made it through and caused real damage.