麻豆社

Armed insurgents have crossed the border from Ukraine to launch attacks in Russia's Belgorod region. Two Russian paramilitary groups claim they were responsible for the largest cross-border incursion since Russia's full-scale invasion began. We explore the motives of the two groups with 麻豆社 Russia Editor Steve Rosenberg.

Also, how does the 麻豆社 decide which material shared on social media is accurate and which is disinformation? We鈥檙e joined by Olga Robinson from 麻豆社 Verify, who explains the tools journalists use to sift through photos, videos and documents.

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

Produced by Clare Williamson with Arsenii Sokolov, Tom Smithard, Madeleine Drury and Drew Hyndman. The technical producer was Ben Andrews. The assistant editor is Alison Gee and the 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