Overnight, Moscow's missile and drone strikes have caused blackouts in multiple districts of Ukraine's capital, Kyiv.
A number of civilians were injured while local people in eastern districts were experienced blackouts and faced disruption to water supplies, according to municipal leaders.
At the same time, a young boy was fatally injured in a separate aerial attack in the Zaporizhzhia region in the country's south-east, based on information from local officials.
Russian forces has escalated assaults on electrical systems over the last fortnight, while Ukrainian leadership has demanded "concrete actions" from partner nations to exert influence on Moscow.
"What is required is not superficial actions but strong steps - from the US, Europe and the major economies - in providing defensive weapons and implementing sanctions," was stated in a social media post.
Officials stated that 450 drones and several dozen projectiles struck energy facilities, labeling such strikes as "premeditated" and against "essential services" as winter approaches.
Energy officials said Russia was "conducting extensive attacks" and repair crews were striving to fix the damage.
A wave of strikes hit power facilities and civilian homes in the capital.
Five out of the nine people injured in the strikes on the capital have been taken to hospital, as confirmed by municipal representatives.
Local officials said the urban area came under significant strikes during nighttime hours. A young boy was killed and several individuals were injured.
The assaults come after periods of bombing campaigns in the area, parts of which remain under the control of invading troops.
The entire country is on alert for sophisticated projectile assaults, which are tougher to detect.
Authorities told journalists that Moscow was deliberately attempting to destroy the electrical infrastructure, with strikes already disrupting gas facilities.
He said energy workers and government agencies were bracing for additional strikes.