Overnight, Russian missile and drone strikes have led to blackouts in extensive areas of Ukraine's capital, Kyiv.
A number of civilians were wounded while local people in the city's east were left without electricity and faced disruption to drinking water, according to local authorities.
At the same time, a young boy was killed in a different assault in the Zaporizhzhia region in the southeastern part, based on information from area administrators.
Moscow has increased strikes on power infrastructure over recent weeks, while officials has demanded "real steps" from allies to apply pressure on Russia.
"What's needed is not superficial actions but decisive action - from the United States, European nations and the Group of Seven - in supplying air defence systems and enforcing restrictions," he wrote in a public message.
Authorities reported that 450 drones and several dozen rockets attacked energy facilities, describing such attacks as "premeditated" and against "essential services" as winter approaches.
The energy minister said Russia was "inflicting a massive strike" and technical staff were striving to fix the damage.
A series of attacks struck energy infrastructure and civilian homes in Kyiv.
Several of the people injured in the assaults on the capital have been hospitalized, as confirmed by municipal representatives.
Local officials said the urban area endured intense attacks throughout the evening. A young boy was killed and three other people were wounded.
The strikes come after nights of aerial attacks in the region, sections of which are currently controlled by Moscow's military.
All of Ukraine is on alert for sophisticated projectile assaults, which are tougher to detect.
Authorities told journalists that Moscow was purposely seeking to damage the country's energy grid, with assaults already affecting gas facilities.
Authorities confirmed energy workers and government agencies were bracing for more assaults.
