A wave of Russian strikes have hammered Ukraine’s energy infrastructure, leaving at least five dead. We speak to Kharkiv resident Nataliya, who joins us from a special bunker in the city, where officials say 700 000 were left with no electricity. Also, we hear from one eyewitness who lives next door to one of the targets - Ukraine's largest dam, the DniproHES, which was hit eight times according to Ukrainian officials And we get the latest from the BBC’s Sarah Rainsford in Kyiv where officials are calling this the largest missile and drone attack on infrastructure of the war so far, and Glen Grant, a military analyst explains the potential strategy behind these strikes. Today’s episode is presented by Victoria Derbyshire and Vitaly Shevchenko. The producers were Arsenii Sokolov, Cordelia Hemming and Ivana Davidovic. The technical producer was Sam Dickinson. The series producer is Tim Walklate. The senior news editor is Sam Bonham. Email [email protected] with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480 You can join the Ukrainecast discussion on Newscast’s Discord server here: tinyurl.com/ukrainecastdiscord