The Russian missiles sought out targets from the Lviv region in western Ukraine near Poland to Kharkiv in northeast Ukraine bordering Russia. The state energy company Ukrenergo reported emergency power outages in six regions. It often shuts down production during attacks as a precaution.

The Ukrainian energy minister says Russia has launched a massive aerial attack against Ukraine, forcing the country to introduce preventive power cuts

The scale of the assault on Wednesday was not immediately clear, but Ukraine’s energy minister called it “massive.”