"It’s a very dangerous job. Three criminal investigation officers carried out operation to locate and apprehend an alleged criminal in Berdiansk, the Zaporizhia region, around 9 a.m. today. The perpetrator used grenade against the law enforcers who came to arrest him. Three policemen received severe shrapnel wounds. Unfortunately, I have to admit that the safety of our citizens is often ensured at the cost of health and lives of the police officers," Kniaziev wrote on social media.