In February 1943, Heinrich Himmler ordered that local Jews should be placed in a camp to help clear the Warsaw ghetto following its demolition. However, fierce fighting during the Warsaw Ghetto Uprising foiled this plan. Following the defeat of the uprising in April, surviving Jews were deported to camps in the vicinity of Lublin, sent to Treblinka extermination camp, or summarily killed. The concentration camp was established in July 1943, but Jewish prisoners were not from Warsaw but rather from other concentration camps in Europe. The camp was located at the Gestapo prison (Gęsiówka), which was the only building left intact in the ghetto.