The Belarusian Hajun monitoring group reported this.
“According to our data, the dragon's teeth have been manufactured at the Gomel plant of reinforced concrete products for over a month and are on their way to the Russian Federation. At least, according to preliminary information, Gomel reinforced concrete is not the only Belarusian enterprise that produces such anti-tank fortifications,” the report says.
Hajun's team also noted that these are the 'pyramids' used by the Wagner PMC in the construction of the so-called Wagner Line in the temporarily occupied territories of Ukraine.
On November 8, 2022, UK intelligence drew attention to the fact that Russia had begun the construction of defense structures around the occupied Mariupol. For this purpose, two factories produce concrete pyramidal anti-tank structures, known as "dragon's teeth".