Russia launched a mass aerial attack against Ukraine on Dec. 25, targeting cities across the country with missiles and drones.
The northeastern city of Kharkiv was among the hardest hit, coming under "massive fire" from ballistic missiles, according to local authorities.
Russia launched 78 missiles and 106 drones, the Air Force said.
Ukraine's largest private energy company, DTEK, reported that Russia had attacked its thermal power plants, "seriously damaging equipment."
Poland scrambled fighter jets in response to the Russian missile threat in western Ukraine, the Polish Operational Command reported.
The mass attack follows a ballistic missile strike against Kryvyi Rih on Christmas Eve.
A few days before, Russia launched five ballistic missiles at Kyiv on Dec. 20, causing fires, casualties, and damage to several foreign embassies. »
