Moscow Mayor Sergei Sobyanin said 450 drones heading for the capital had been shot down in what he called "the most massive" attack on the city. The region's governor, Andrei Vorobyev, said at least two people were killed and 20 injured. The Guardian reported that more than 1,600 drones were intercepted across the broader Moscow region, with 450 aimed at the capital.
A major oil refinery in the Moscow region — which supplies more than a third of the region's fuel, according to Kyiv — was hit. Ukrainian military officials said three key units at the refinery were damaged. Zelensky confirmed that Kyiv had struck a "key" Russian oil facility and a logistics site with drones and missiles, representing "billions of dollars that sustain the war machine."
Separately, Ukrainian officials said nine people, including three children, had been killed in Russian attacks in the Kyiv and Sumy regions on Saturday.
The attack came on the third and final day of Russia's parliamentary election, a vote that is tightly controlled by the Kremlin and dismissed by critics as neither free nor fair. Sobyanin said the drone assault was "an attempt to disrupt" the election. Russian state media reported that an election official was among two people killed by a drone attack on a bus in the Moscow-controlled part of Kherson region in Ukraine, according to the head of Russia's election commission.
The use of a newly developed Ukrainian ballistic missile — identified by Zelensky but not named in available reports — marks an escalation in Kyiv's capability to strike deep inside Russian territory. Ukraine's defence minister said attacking such facilities "directly undermines the enemy's ability to continue its war of aggression and supply its military formations."