Russia has launched a huge attack on Ukraine's energy infrastructure, which authorities said was the 12th large-scale attack on energy facilities this year.
Ninety-three missiles and more than 200 drones were used - but 81 of the missiles were shot down, according to Ukrainian President Volodymyr Zelensky.
The strikes targeted sites in western Ukraine, damaging energy facilities in several regions, some seriously. Authorities in Ivano-Frankivsk said it was the worst attack on the region so far.
Moscow said the attack was in response to a Ukrainian strike on a military airbase in south-west Russia using US-made missiles.