About 1,000 prisoners, half of whom were deported from German-occupied Poland, a quarter from the Soviet Union, and the remainder were mostly Jews from various other countries, were imprisoned as forced labour in the latter.
Approximately 1,000 prisoners, one-half of whom were deported from German-occupied Poland, a quarter from the Soviet Union, and the remaining prisoners were mostly Jews from various other countries, were imprisoned as forced labor in the latter.