Russia launched aerial attacks on Ukraine’s energy sector “on a massive scale” overnight into Wednesday, local authorities said, amid intensified bombardment that has left Ukraine in a precarious position as the war grinds into a third winter.

Ukrainian President Volodymyr Zelensky has denounced an "inhumane" attack from Russia, which launched over 170 missiles and drones on his war-torn country's power grid on Christmas Day, killing one and causing widespread blackouts.

Ukraine's air force says it detected 184 missiles and drones, causing damage to energy infrastructure across the country.