Russia unleashed its second big attack on Ukraine's energy infrastructure this month on Thursday, cutting power to more than 1 million people in the west, south and centre of the country. President Vladimir Putin said Moscow had struck in response to Ukraine's strikes on Russian territory with U.

President Vladimir V. Putin said Russia has been selecting targets for missile strikes in Kyiv and that they might include “decision-making centers.”

Ukrainian officials say Russia has conducted a “massive” attack against Ukraine’s energy infrastructure, firing nearly 200 missiles and drones and leaving more than a million households without power.