More than a million households in Ukraine were left without electricity following Russian strikes on energy facilities across the country, the deputy head of the Ukrainian presidency said Saturday.

"As of now, 672,000 subscribers have been disconnected in Khmelnytskyi region, 188,400 in Mykolaiv region, 102,000 in Volyn region, 242,000 in Cherkasy region, 174,790 in Rivne region, 61,913 in Kirovograd region and 10,500 in Odessa region," Kyrylo Tymoshenko said on social media.

Ukrainian President Volodymyr Zelensky said Saturday Russia carried out a "massive attack" on Ukraine overnight, following reported strikes on energy infrastructure that resulted in power outages across the country. 

"The aggressor continues to terrorise our country. At night, the enemy launched a massive attack: 36 rockets, most of which were shot down... These are vile strikes on critical objects. Typical tactics of terrorists," Zelensky said on social media.