Overnight, Russian missile and drone strikes have caused blackouts in extensive areas of Ukraine's capital, Kyiv.
A number of civilians were injured while inhabitants in eastern districts were left without electricity and dealt with problems to water supplies, according to municipal leaders.
Meanwhile, a minor was fatally injured in a separate assault in the Zaporizhzhia area in the southern area, according to local officials.
Russian forces has increased assaults on power infrastructure over the last fortnight, while the country's government has called for "substantial measures" from partner nations to exert influence on Russia.
"What is required is not symbolic gestures but decisive action - from the United States, Europe and the G7 - in delivering defensive weapons and enforcing penalties," he wrote in a public message.
Officials stated that 450 drones and more than 30 projectiles attacked the country's power systems, characterizing such attacks as "strategic and deliberate" and against "essential services" as winter approaches.
Government representatives said Russia was "launching a major assault" and maintenance teams were laboring to repair systems.
A series of attacks hit electrical systems and residential structures in the capital.
Several of the people injured in the assaults on the city have been hospitalized, per statements from city authorities.
Regional authorities said the urban area experienced intense attacks during nighttime hours. A seven-year-old child was killed and three other people were wounded.
The attacks come after nights of air raids in the area, sections of which are currently controlled by invading troops.
The entire country is under warning for advanced weapon attacks, which are more difficult to detect.
Government officials told journalists that Russia was deliberately attempting to destroy the national power system, with strikes already impacting energy systems.
He said utility staff and government agencies were preparing for further attacks.
