1,438 people were registered as members of the Jewish community in Bremen at the beginning of 1933 (0.2% of the city's population). Of these, about 930 had managed to leave Germany by 1941. Those remaining suffered the same fate as those elsewhere in Germany: deportation and murder in the concentration camps of occupied Poland. Bremen-Farge concentration camp, a sub-camp of the Neuengamme camp complex, was established in the autumn of 1943. The prisoners were used as slave labour at the U-boot Bunker Valentin.