According to Ukrainian President Volodymyr Zelensky, the power cuts following the Russian strikes on Ukraine's power grids have been affecting nearly 4 million Ukrainians.

Read more: Ukraine says will stop exporting power to EU

"As of this time, many cities and regions of our country use stabilization blackout schedules," Zelensky said in an evening address on Friday, adding, "We are doing everything so that the state has the opportunity to reduce such blackouts."

Earlier this month, Ukraine's president Volodymyr Zelensky said that Russian strikes had caused 30% of Ukraine’s power stations to have been destroyed beyond repair in almost a week, which resulted in massive power outages across the country.

Read more: Russia’s chilling warning sharpens the stakes with “Israel”

Following the attack on the crimean bridge, which Russia accused Ukraine of carrying out, Russia carried out strikes against infrastructure across Ukraine.

Russian President Vladimir Putin threatened that Russia's response to any further Ukrainian attacks would be "severe" after he announced the strikes, adding that new intense bombing was not necessary "at the moment".

Read more: Israeli minister: It's time we arm Ukraine

Addressing the post-strike power outages, Ukrenergo (Ukraine's national energy company) stated that Kiev's energy infrastructure has been damaged due to the missile attack. Residents across Ukrainian cities were told to cut down on electricity consumption for the time being.