Ukraine fired over 1,000 drones at Russia on 20 September, including hundreds targeting Moscow in what Moscow's mayor called the "largest ever" attack on the capital; an oil refinery and high-rise residential building sustained damage with at least two killed.
Ukraine conducted its largest recorded drone attack on Moscow on September 20, 2026—the final day of Russia's parliamentary election—killing at least two people and damaging an oil refinery. Russian authorities said 1,600 drones were intercepted in total.