In August 1941, the German military and civil administration set up a concentration camp for Serbian Jews, Roma and political prisoners on the site of the so-called “Topovske Šupe” – a collection of former army barracks and warehouses in the centre of Belgrade. The camp, which was run with the help of Serbian collaborators, served as a prison for roughly 5,000 Jewish men and around 1,500 male Roma, all of whom were later shot at various execution sites around Belgrade.