Ukrainian defense officials have claimed that Russia's Kostroma 331st Guards Airborne Regiment has been destroyed by its forces.

In an update posted to the Ukrainian General Staff's Facebook page, officials said that the regiment had been involved in engagements around the capital city of Kyiv and that just one member of the unit had survived an encounter with Ukrainian troops.

The update also claimed that the commandant's office in the Russian city of Belgorod was investigating a case against 10 servicemen of the 138th motorised rifle brigade who mutinied after taking heavy losses during an offensive in the eastern city of Kharkiv.

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