Overnight, Moscow's missile and drone strikes have led to blackouts in extensive areas of Ukraine's capital, Kyiv.
Several individuals were injured while residents in the city's east were left without electricity and encountered problems to water supplies, according to local authorities.
Meanwhile, a seven-year-old child was killed in a distinct assault in the Zaporizhzhia area in the southern area, according to local officials.
Russian forces has increased strikes on power infrastructure over the past few days, while Ukrainian leadership has demanded "substantial measures" from partner nations to exert influence on Russia.
"The necessity is not symbolic gestures but decisive action - from the United States, the EU and the G7 - in delivering protection systems and applying penalties," he wrote in a social media post.
He said that 450 drones and several dozen missiles struck Ukraine's energy infrastructure, characterizing such attacks as "cynical and calculated" and against "essential services" as temperatures become colder.
Government representatives said Russia was "inflicting a massive strike" and repair crews were laboring to fix the damage.
A series of attacks struck power facilities and civilian homes in the capital.
Several of the people injured in the strikes on the capital have been taken to hospital, according to municipal representatives.
Area administrators said the metropolitan region came under heavy assaults throughout the evening. A young boy was killed and several individuals were injured.
The strikes succeed nights of air raids in the area, parts of which are occupied by Russian forces.
All of Ukraine is on alert for advanced weapon attacks, which are more difficult to spot.
National leaders told reporters that Russia was deliberately attempting to destroy the national power system, with strikes already disrupting fuel infrastructure.
Officials stated energy workers and government agencies were bracing for further attacks.