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A Ukrainian medic, Olexander, based on Snake Island was captured on the first day of the war. Almost five months later, his mother and fianc茅e break their silence to make a plea for information on his wellbeing.

The sole survivor of a Russian shooting, who lived by playing dead, has been speaking to Fergal Keane about what happened.

And the 大象传媒鈥檚 Olga Ivshina explains how Russia has been sending so-called volunteers to fight in Ukraine - and why for so many of them, this will be a one-way ticket.

The series producer is Estelle Doyle. The producers are Phil Marzouk, Arsenii Sokolov and Louise Hidalgo. The technical producer is Emma Crowe. And the assistant editor is Alison Gee.

Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp to +44 0330 1239480.