Overnight, Russian missile and drone strikes have caused blackouts in large parts of the capital city, Kyiv.
Nine people were hurt while residents in the city's east were plunged into darkness and faced problems to drinking water, per reports from local authorities.
Meanwhile, a minor was fatally injured in a distinct assault in the Zaporizhzhia region in the country's south-east, based on information from local officials.
Moscow has increased attacks on electrical systems over the past few days, while Ukrainian leadership has demanded "real steps" from international partners to exert influence on Moscow.
"What is required is not superficial actions but strong steps - from the America, the EU and the Group of Seven - in providing defensive weapons and enforcing restrictions," was stated in a public message.
Authorities reported that 450 drones and several dozen missiles attacked energy facilities, labeling such assaults as "cynical and calculated" and against "critical infrastructure" as winter approaches.
The energy minister said Moscow was "inflicting a massive strike" and repair crews were laboring to restore power.
A barrage of missiles hit electrical systems and apartment buildings in Kyiv.
Several of the people hurt in the strikes on the city have been taken to hospital, per statements from local officials.
Regional authorities said the metropolitan region experienced intense attacks overnight. A seven-year-old child lost their life and three other people were hurt.
The attacks come after evenings of bombing campaigns in the territory, sections of which remain under the control of Russian forces.
All of Ukraine is in a state of readiness for hypersonic Kinzhal missile strikes, which are more difficult to detect.
Authorities told reporters that Russia was purposely seeking to demolish the national power system, with strikes already affecting gas facilities.
Authorities confirmed utility staff and officials were anticipating further attacks.
