Here is additional information about what may be happening in Belgorad Oblast and future effects.
https://www.cnn.com/2023/05/23/europe/belgorod-attacks-russia-ukraine-explainer-intl/index.html [This detailed report on the Russian rebel incursion into Belgorod Oblast was released this morning.]
https://www.atlanticcouncil.org/blogs/ukrainealert/belgorod-raid-sparks-border-alarm-for-russia-ahead-of-ukrainian-offensive/ [Here is more and varied comment from late Tuesday.]
https://euromaidanpress.com/2023/05/24/russo-ukrainian-war-day-454-ukraine-not-involved-directly-in-belgorod-ukraine-authority/ [An information source I have not seen before.]
Thanks!