During the night, Moscow's aerial assaults have led to blackouts in extensive areas of Ukraine's capital, Kyiv.
Nine people were wounded while inhabitants in eastern districts were plunged into darkness and faced interruptions to drinking water, as stated by municipal leaders.
Meanwhile, a young boy was fatally injured in a separate Russian drone strike in the southeastern region in the southern area, based on information from area administrators.
Russian forces has escalated assaults on electrical systems over recent weeks, while Ukrainian leadership has demanded "substantial measures" from international partners to increase pressure on Russia.
"What's needed is not window dressing but decisive action - from the US, Europe and the G7 - in supplying air defence systems and applying sanctions," was stated in a public message.
Officials stated that 450 drones and more than 30 projectiles struck the country's power systems, describing such attacks as "cynical and calculated" and against "essential services" as temperatures become colder.
Energy officials said Russia was "conducting extensive attacks" and repair crews were laboring to fix the damage.
A series of attacks damaged power facilities and civilian homes in Kyiv.
Five out of the nine people injured in the attacks on the capital have been taken to hospital, according to local officials.
Regional authorities said the urban area experienced significant strikes overnight. A seven-year-old child lost their life and multiple civilians were hurt.
The strikes succeed nights of aerial attacks in the territory, parts of which remain under the control of Russian forces.
The entire country is in a state of readiness for advanced weapon attacks, which are tougher to spot.
National leaders told the media that Russia was purposely seeking to destroy the electrical infrastructure, with assaults already disrupting energy systems.
He said utility staff and authorities were preparing for more assaults.
