The 227th regiment of the 127th brigade of the territorial defense unit of the Armed Forces of Ukraine has ousted the Russian invaders and advanced to a section of the state border in Kharkiv Oblast, volunteer Roman Donyk said in a Facebook post on May 15.
The volunteer also published footage with soldiers of the territorial defense unit.
"(There has been) several weeks of fierce fighting," Donyk said.
"Kharkiv Oblast is being cleansed of invaders. The 227th regiment of the 127th brigade of the territorial defense unit advanced to the border with the aggressor country in Kharkiv Oblast."
Later, Ukraine's Defense Ministry on its Facebook page confirmed the volunteer's information, adding another video of the Ukrainian military near the border.