Overnight, Russian aerial assaults have caused blackouts in large parts of the capital city, the Ukrainian capital.
A number of civilians were hurt while local people in the city's east were experienced blackouts and dealt with problems to water supplies, according to local authorities.
At the same time, a young boy was fatally injured in a separate Russian drone strike in the southeastern region in the southeastern part, as reported by area administrators.
Moscow has increased attacks on energy facilities over recent weeks, while Ukrainian leadership has called for "concrete actions" from allies to apply pressure on Russia.
"What is required is not window dressing but firm measures - from the United States, European nations and the Group of Seven - in providing protection systems and implementing sanctions," he wrote in a social media post.
Authorities reported that hundreds of unmanned aircraft and several dozen missiles attacked energy facilities, labeling such strikes as "cynical and calculated" and against "critical infrastructure" as temperatures become colder.
Government representatives said Moscow was "launching a major assault" and technical staff were working to restore power.
A wave of strikes hit energy infrastructure and civilian homes in the capital.
Several of the people wounded in the strikes on the capital have been taken to hospital, as confirmed by local officials.
Area administrators said the urban area endured significant strikes during nighttime hours. A seven-year-old child lost their life and three other people were injured.
The assaults succeed periods of bombing campaigns in the territory, portions of which are occupied by Russian forces.
The whole nation is under warning for sophisticated projectile assaults, which are tougher to detect.
Authorities told the media that Moscow was deliberately attempting to demolish the electrical infrastructure, with strikes already affecting fuel infrastructure.
Officials stated technical personnel and government agencies were bracing for further attacks.