A barrage of Russian missiles fired Saturday targeted Ukraine's electrical grid.
Ukrainian parliamentary deputy Kira Rudik tweeted that power was knocked out for 1.5 million people.
"Total darkness and cold are coming," Rudick said, as the country prepares for winter with limited power.
"1.5 million of #Ukrainians without electricity right now," Kira Rudick, a member of the Ukrainian parliament tweeted shortly after the attacks.
On Telegram, President Volodymyr Zelenskyy called the attacks "vile strikes on critical objects," and urged Ukrainians to conserve energy.