Russian forces launched drone attacks across the Kyiv region on September 21, 2026, in apparent retaliation for a massive overnight barrage of over 1,000 Ukrainian drones that targeted Moscow. One strike hit a warehouse complex in the Boryspil district, igniting a significant fire and injuring at least one person.
Local authorities reported multiple strikes in and around the Ukrainian capital throughout the day. The Russian response followed an unprecedented Ukrainian drone offensive that involved more than 1,000 unmanned aerial vehicles targeting the Russian capital. Details regarding casualties or damage from the Ukrainian strikes on Moscow were not immediately available in the provided notes.