A new wave of Ukrainian drone attacks on Russia has damaged and set alight several more oil depots and energy facilities, one location notably which lies very deep into Russian territory.

On Wednesday drones struck the far away town of Kotelnich in Russia’s Kirov Oblast. Regional Governor Alexander Sokolov said that two inbound drones were intercepted by air defenses, while a third “fell” and a blaze subsequently erupted near the Zenit oil facility. This clearly is one of the deepest drone strikes into Russia of the entire war, given Kotelnich lies some 1,500 km (930 miles) northeast of the border with Ukraine. It is likely a record distance.