Overnight, Russian missile and drone strikes have caused power cuts in large parts of Ukraine's capital, Kyiv.
Several individuals were wounded while residents in eastern neighborhoods were plunged into darkness and dealt with problems to water systems, according to city officials.
At the same time, a young boy was lost their life in a different aerial attack in the southeastern region in the southern area, as reported by area administrators.
Russian forces has escalated strikes on electrical systems over the past few days, while the country's government has called for "substantial measures" from international partners to increase pressure on Russia.
"The necessity is not symbolic gestures but strong steps - from the United States, European nations and the major economies - in providing air defence systems and applying restrictions," he wrote in a online statement.
He said that 450 drones and more than 30 projectiles struck energy facilities, describing such assaults as "cynical and calculated" and against "everything that sustains normal life" as winter approaches.
Government representatives said Russia was "launching a major assault" and maintenance teams were laboring to repair systems.
A series of attacks hit power facilities and residential structures in the capital.
Several of the people wounded in the assaults on the capital have been taken to hospital, as confirmed by city authorities.
Regional authorities said the urban area endured intense attacks during nighttime hours. A young boy lost their life and three other people were wounded.
The assaults succeed nights of air raids in the area, sections of which remain under the control of Russian forces.
All of Ukraine is under warning for advanced weapon attacks, which are harder to detect.
Authorities told the media that Russia was intentionally trying to destroy the national power system, with strikes already disrupting energy systems.
He said technical personnel and authorities were preparing for further attacks.