Ukrainian forces have attempted to push into Russia's southern Belgorod region, according to Russian Telegram channels.
Reports said 500 Ukrainian troops attacked two checkpoints at Nekhoteyevka and Shebekino.
The Belgorod regions border the Kursk region, where Ukrainian troops have seized territory after launching an invasion on 6 August.
In a Telegram message, Belgorod's regional governor said that "information has appeared that the enemy is trying to break through the border."
