Overnight, Russian missile and drone strikes have caused power cuts in large parts of Ukraine's capital, Kyiv.
Several individuals were wounded while local people in eastern districts were plunged into darkness and encountered disruption to water supplies, according to city officials.
Simultaneously, a young boy was fatally injured in a different Russian drone strike in the Zaporizhzhia region in the southeastern part, according to local officials.
Moscow has intensified attacks on energy facilities over the last fortnight, while the country's government has requested "real steps" from allies to increase pressure on Moscow.
"What is required is not superficial actions but decisive action - from the America, European nations and the G7 - in delivering defensive weapons and applying restrictions," he wrote in a online statement.
Authorities reported that 450 drones and over thirty missiles attacked Ukraine's energy infrastructure, labeling such strikes as "strategic and deliberate" and against "essential services" as temperatures become colder.
Energy officials said Russia was "launching a major assault" and maintenance teams were laboring to repair systems.
A barrage of missiles struck electrical systems and civilian homes in the capital.
Five out of the nine people wounded in the strikes on the city have been hospitalized, as confirmed by municipal representatives.
Local officials said the metropolitan region experienced significant strikes overnight. A seven-year-old child lost their life and several individuals were injured.
The strikes follow periods of air raids in the territory, portions of which are currently controlled by Russian forces.
The entire country is in a state of readiness for sophisticated projectile assaults, which are harder to spot.
Authorities told the media that Moscow was purposely seeking to damage the country's energy grid, with strikes already impacting fuel infrastructure.
Authorities confirmed technical personnel and authorities were anticipating further attacks.