Ukraine fired more than 1,000 drones at Russia overnight Saturday into Sunday, with approximately 450 of them targeting the Moscow region in what officials on both sides described as the largest such assault on the Russian capital since the war began. The attack killed two people in the Moscow region — a 74-year-old man and a 44-year-old woman — and wounded at least 20 others, according to Moscow regional Governor Andrei Vorobyov. A drone also struck a 21-story residential building, forcing the evacuation of roughly 400 residents, and a fire broke out at the Moscow Oil Refinery, which Ukrainian military officials said supplies more than a third of the region's fuel.

Moscow Mayor Sergei Sobyanin confirmed the refinery and a residential building near one of the capital's boulevards were hit, and said temporary flight restrictions were imposed at Sheremetyevo and Vnukovo airports, both of which halted arrivals and departures overnight before lifting restrictions by Sunday morning. Sobyanin characterized the strike as 'an attempt to disrupt' Russia's three-day parliamentary elections, which concluded Sunday. Russian state media also reported that a drone attack on a civilian bus in a Moscow-controlled area of Kherson region killed two people, including an election official, citing the head of Russia's Central Election Commission.

Ukrainian President Volodymyr Zelenskyy publicly praised the strikes, writing on social media that Kyiv had deployed a combination of drones and domestically produced missiles — including the Flamingo and Pelican — to strike Russian oil and logistics infrastructure. 'These are billions of dollars that sustain the war machine,' Zelenskyy wrote, framing the campaign as economic as well as military pressure on Moscow. Ukraine's defence minister said attacking fuel facilities 'directly undermines the enemy's ability to continue its war of aggression.'

The assault came as Russia simultaneously intensified its own strikes on Ukraine. A Russian attack on Fastiv in the Kyiv region on Saturday killed a mother and her two young children, and a separately injured child later died in hospital, according to regional officials. In the northeastern Sumy region, additional casualties were reported, and Zelenskyy said a Russian drone struck a monastery in the Kherson region, killing a member of the clergy and wounding four others.

The exchange underscores a sharp escalation in long-range strikes by both sides, with Ukraine increasingly targeting Russian energy infrastructure as a strategy to strain Kremlin finances and military logistics. The attack coincided with the final day of Russia's parliamentary elections, which are held in part across four Ukrainian regions Moscow illegally annexed and do not fully control. In a related development, the U.S. State Department approved a potential $2.68 billion sale of air defense equipment to Ukraine last week, and President Donald Trump signed legislation introducing new sanctions designed to pressure Russia over the conflict.