Some 3,700 concentration camp inmates were forced to work in Audi factories during World War II. On May 26, the German automaker published findings of a report it commissioned on its activities under Nazi Germany.

The car manufacturer had previously acknowledged its role in exploiting forced labor, paying millions of dollars into a fund set up by the German government to compensate victims, according to the U.K.’s Daily Mail. But the new report reveals that in a deal brokered with the Nazi SS, Audi had a total of 20,000 forced laborers working in its factories. The SS had six labor camps built for the company. — jta