Record drone raid hits Moscow refinery belt as Russia votes on final day of Duma election

Ukraine sent hundreds of drones toward Moscow overnight into Sept. 20, in what Moscow's mayor called the biggest Ukrainian drone attack yet, killing two people in the Moscow region and damaging a facility at the capital's oil refinery as Russia entered the last day of its three-day parliamentary election, according to Al Jazeera and The Moscow Times.

Moscow Mayor Sergei Sobyanin said air defenses had shot down more than 1,600 drones since Saturday, of which 450 were heading for the capital, The Moscow Times reported, citing Reuters. Several drones reached the grounds of the Moscow refinery and one struck an apartment, Sobyanin said, adding that there were no casualties inside the city itself. "The unprecedented attack was clearly planned with the aim of disrupting the elections," he said. "The adversary failed to achieve this."

Russia's Defense Ministry said its forces intercepted and destroyed 1,110 Ukrainian fixed-wing drones overnight across a wide arc of regions from Belgorod and Kursk to Samara, Krasnodar and Crimea, state news agency TASS reported. The ministry's overnight figure differs from Sobyanin's 1,600, which counts drones downed across Russia since Saturday.

Deaths and evacuations outside the city

The two fatalities were recorded in the Moscow region rather than the city. Regional Governor Andrei Vorobyov said a 44-year-old woman and an elderly man were killed in two separate attacks, Al Jazeera reported. A fire caused by a drone crashing into a 21-story apartment block in the Ramenskoye district forced the evacuation of 400 people, including 70 children, and a number of homes were damaged, The Moscow Times quoted Vorobyov as saying.

Al Jazeera's Moscow correspondent, Dmitry Medvedenko, said he had "not seen numbers this large in the four and a half years of this conflict, especially in the past six months when Ukrainian attacks have escalated."

Kyiv claims an oil target

Ukrainian President Volodymyr Zelenskyy said the strikes had a "very significant impact in the Moscow region last night," adding that "one of Russia's key oil industry facilities and the aggressor's logistics facility were hit," Al Jazeera reported. "These are billions of dollars that sustain the war machine," he said. The Moscow refinery processed 11.6 million metric tons of crude in 2024, producing 2.9 million tons of gasoline and 3.2 million tons of diesel, according to The Moscow Times.

The overnight exchange ran in both directions. Ukraine's air force said Russia launched 138 drones of various types across the country, of which air defenses shot down 101, Al Jazeera reported. In the Kyiv region, at least four people were killed, including three children, and 31 sites were damaged across five districts, 24 of them in the Fastiv district, the outlet said, citing regional governor Tymur Tkachenko.

Both governments say they do not target civilians, The Moscow Times noted.

What it means: The numbers matter more than the casualty count. A raid in which Russian officials themselves count 450 drones aimed at Moscow, and 1,110 shot down nationwide in a single night, shows Kyiv can now mass long-range drones at a scale that stretches the capital's air defenses rather than merely probing them. The choice of the closing day of the Duma vote, and of the refinery that supplies the capital's fuel, signals two aims at once: to put the cost of the war in front of Moscow voters and to keep hitting the oil-processing chain that funds it. Sobyanin's framing, that the attack was meant to disrupt the election and failed, shows the Kremlin will present the vote's completion as proof of resilience. But the evacuation of a 400-resident tower in Ramenskoye and the drone reaching refinery grounds also show that the capital's outer belt, not just border regions, now sits inside the war's reach.