Overnight, Moscow's aerial assaults have caused electricity outages in extensive areas of the capital city, Kyiv.
Several individuals were hurt while local people in the city's east were plunged into darkness and encountered disruption to drinking water, according to city officials.
Meanwhile, a seven-year-old child was fatally injured in a separate assault in the Zaporizhzhia region in the southeastern part, based on information from regional authorities.
Moscow has intensified attacks on power infrastructure over the last fortnight, while the country's government has requested "concrete actions" from partner nations to apply pressure on Russia.
"What's needed is not window dressing but decisive action - from the America, Europe and the Group of Seven - in providing defensive weapons and applying sanctions," he wrote in a online statement.
Authorities reported that 450 drones and several dozen missiles attacked Ukraine's energy infrastructure, describing such assaults as "cynical and calculated" and against "critical infrastructure" as winter approaches.
Energy officials said Moscow was "inflicting a massive strike" and technical staff were laboring to restore power.
A wave of strikes hit electrical systems and apartment buildings in Kyiv.
Multiple people hurt in the assaults on the city have been taken to hospital, as confirmed by city authorities.
Local officials said the metropolitan region experienced significant strikes throughout the evening. A minor was killed and three other people were injured.
The strikes come after periods of bombing campaigns in the area, sections of which remain under the control of invading troops.
All of Ukraine is in a state of readiness for hypersonic Kinzhal missile strikes, which are more difficult to detect.
National leaders told journalists that Moscow was purposely seeking to destroy the country's energy grid, with assaults already impacting fuel infrastructure.
Authorities confirmed technical personnel and officials were bracing for further attacks.
