At least five Ukrainian prisons have been attacked by Russian forces since the beginning of the Vladimir Putin-ordered invasion nearly a month ago, Ukraine’s Ministry of Justice said Tuesday.

Prisons in the badly battered coastal city of Mariupol, as well as lockups in Berdiansk, Chernihiv, and Kharkiv, have been hit. There are 33 prisons located in active conflict zones in Ukraine that have endured heavy shelling as Russian forces continue the near-constant attack on their Eastern European neighbor.