Kyiv regularly uses long-range drones to target military and industrial targets in Russia, including oil refineries, weapons factories, and ammunition depots. Ukraine allegedly targeted Moscow with 34 drones in a previous overnight strike on Sept. 22.

Waves of Ukrainian explosive drones smash Russian oil, petrol depots and substations across Russia causing huge blackouts - as Kyiv tries to put the Kremlin on the back foot back home

Russia, meantime, attacked the city of Kamianske in Ukraine’s eastern Dnipropetrovsk region with drones overnight, injuring eight people, the head of the regional military administration, Vladyslav Haivanenko, said on his official Telegram channel.

Western analysts say the attacks on energy infrastructure so far have had a serious — but not crippling — effect. Ukrainian drones have repeatedly hit 16 major Russian refineries, representing about 38% of the country’s nominal refining capacity, according to a recent review by the Carnegie Endowment, a U.S.-based think tank.

An overnight drone attack by Ukraine temporarily disrupted power and heating supplies in the southwestern Russia city of Voronezh, a regional governor said on Sunday. The attack on Voronezh, the administrative centre of the wider Voronezh region,