During the night, Russian aerial assaults have resulted in blackouts in extensive areas of Ukraine's capital, Kyiv.
Nine people were injured while local people in eastern districts were left without electricity and faced disruption to water supplies, according to city officials.
Simultaneously, a seven-year-old child was killed in a different assault in the Zaporizhzhia region in the southern area, according to local officials.
Russian forces has escalated strikes on electrical systems over the past few days, while the country's government has called for "real steps" from international partners to exert influence on Russia.
"What's needed is not symbolic gestures but strong steps - from the United States, Europe and the G7 - in supplying air defence systems and applying restrictions," was stated in a social media post.
Authorities reported that 450 drones and over thirty missiles attacked Ukraine's energy infrastructure, labeling such strikes as "cynical and calculated" and against "critical infrastructure" as temperatures become colder.
Energy officials said Russia was "inflicting a massive strike" and repair crews were working to fix the damage.
A wave of strikes struck energy infrastructure and apartment buildings in Kyiv.
Several of the people hurt in the attacks on the capital have been hospitalized, as confirmed by local officials.
Area administrators said the metropolitan region endured heavy assaults throughout the evening. A young boy was killed and three other people were wounded.
The strikes come after evenings of bombing campaigns in the area, sections of which are occupied by Russian forces.
The entire country is on alert for sophisticated projectile assaults, which are tougher to detect.
Government officials told the media that Moscow was purposely seeking to demolish the country's energy grid, with strikes already affecting energy systems.
Officials stated utility staff and government agencies were anticipating further attacks.