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A new investigation claims a Ukrainian military officer coordinated the attack on Russia's Nord Stream pipelines. But was he acting as a maverick? Or on behalf of Ukraine?

We hear from James Waterhouse in Kyiv and Newsnight鈥檚 diplomatic editor Mark Urban, and get the latest update on the "stalemate" war.

And we catch up with Olga, a teacher from Kherson, who has lived through Russian occupation, constant bombardment and floods. She tells us what life was like under Russian occupation and how that compares with life one year after her city was liberated.

Today鈥檚 episode is presented by Victoria Derbyshire and Vitaly Shevchenko.

The producers were Keiligh Baker, Arsenii Sokolov, Madeleine Drury and Clare Williamson. The technical producer was Rohan Madison. The series producer is Tim Walklate. The senior news editor is Sam Bonham.

Email Ukrainecast@bbc.co.uk 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鈥檚 Discord server here: tinyurl.com/ukrainecastdiscord