KYIV -- Thermal and hydroelectric power plants in central and western Ukraine were damaged in a massive Russian attack on Friday, said the Ukrainian state-run energy company Ukrenergo.

The air strike caused power outages in the central Dnipropetrovsk region and the eastern Kharkiv region, Ukrenergo said in a statement.

Sergii Lysak, the Dnipropetrovsk regional governor, said on social media Telegram that 12 missiles and 12 drones were shot down over the region overnight.

The Russian side has yet to respond to the claim.

Last week, Russia carried out the biggest attack on the Ukrainian energy sector, hitting the largest hydroelectric plant, the DniproHes, and damaging power facilities across the country.