During the night, Moscow's aerial assaults have led to power cuts in extensive areas of Ukraine's capital, Kyiv.
Several individuals were hurt while residents in eastern districts were plunged into darkness and encountered problems to drinking water, per reports from municipal leaders.
Meanwhile, a young boy was fatally injured in a different assault in the southeastern region in the country's south-east, as reported by area administrators.
Russian forces has increased assaults on electrical systems over recent weeks, while the country's government has called for "substantial measures" from partner nations to apply pressure on Russia.
"The necessity is not window dressing but firm measures - from the America, European nations and the Group of Seven - in providing air defence systems and implementing penalties," he wrote in a online statement.
Authorities reported that numerous aerial vehicles and several dozen projectiles attacked the country's power systems, labeling such strikes as "premeditated" and against "critical infrastructure" as the weather cools.
Energy officials said Moscow was "launching a major assault" and maintenance teams were working to fix the damage.
A barrage of missiles struck energy infrastructure and civilian homes in Kyiv.
Several of the people hurt in the strikes on the city have been transported for medical care, according to local officials.
Regional authorities said the metropolitan region came under intense attacks overnight. A minor died and multiple civilians were hurt.
The strikes come after nights of bombing campaigns in the territory, parts of which are occupied by Russian forces.
All of Ukraine is on alert for hypersonic Kinzhal missile strikes, which are tougher to detect.
Government officials told journalists that Russia was purposely seeking to destroy the national power system, with assaults already disrupting fuel infrastructure.
He said technical personnel and government agencies were anticipating more assaults.
