Ukraine's second-largest city Kharkiv was left without power, water or heating on Thursday after Russia launched more than 80 cruise missiles at energy facilities across the country.

"There is no electricity in the whole city. We have switched to generators at critical infrastructure. Electric-powered transport is not working. There is no heating and water supply, due to the lack of voltage in the electricity network," Kharkiv mayor Igor Terekhov said on local television.