German prosecutors on Thursday charged 92-year-old former concentration camp guard Bruno D. with accessory to murder.

Prosecutors indicted Bruno D. on suspicion of aiding and abetting to the murder of at least 5,230 people during the roughly one year he spent at the Stutthof concentration camp.

During a voluntary interrogation in 2018, Bruno D. admitted to being at the camp but denied harming anyone or having knowledge of what was going on at the camp.

Bruno D. claims that he was not a willful aid to mass murder and that he was implicitly forced to remain at the camp or risk being killed. The former guard was 17 years old when he was assigned to the camp.