In the temporarily captured city of Mariupol, Russian forces were first seen moving reinforced defensive concrete pillboxes towards the Zaporizhia region.
Mariupol Mayor Petro Andriushchenko said this in a statement on Telegram, Ukrinform reports.
"Yesterday, columns of military equipment from Russia were replaced with columns of engineering structures. In addition to usual 'dragon's teeth' [barriers], the movement of concrete pillboxes towards the Zaporizhia region was recorded for the first time," Andriushchenko said, publishing a respective photo.
He said that these structures had been brought from Russia as they are not produced in Mariupol.