During the night, Russian missile and drone strikes have caused power cuts in large parts of Ukraine's capital, Kyiv.
A number of civilians were wounded while local people in eastern districts were plunged into darkness and faced interruptions to water supplies, per reports from municipal leaders.
Meanwhile, a young boy was lost their life in a separate Russian drone strike in the southeastern region in the southeastern part, as reported by local officials.
Russian forces has escalated attacks on power infrastructure over recent weeks, while officials has demanded "real steps" from partner nations to apply pressure on Russia.
"The necessity is not window dressing but strong steps - from the United States, Europe and the G7 - in supplying defensive weapons and implementing penalties," was stated in a social media post.
Authorities reported that numerous aerial vehicles and more than 30 rockets attacked Ukraine's energy infrastructure, describing such attacks as "strategic and deliberate" and against "critical infrastructure" as winter approaches.
The energy minister said Moscow was "launching a major assault" and maintenance teams were working to repair systems.
A series of attacks hit electrical systems and apartment buildings in Kyiv.
Five out of the nine people wounded in the strikes on the capital have been taken to hospital, according to city authorities.
Regional authorities said the urban area experienced intense attacks overnight. A seven-year-old child was killed and multiple civilians were wounded.
The strikes succeed evenings of aerial attacks in the territory, portions of which are currently controlled by Russian forces.
All of Ukraine is on alert for advanced weapon attacks, which are harder to spot.
National leaders told reporters that Moscow was deliberately attempting to demolish the country's energy grid, with attacks already affecting gas facilities.
He said technical personnel and authorities were preparing for more assaults.