In order to facilitate the deportations and the subsequent mass extermination of the Jewish population, a total of fifteen main transport assembly centres were established on the territory of the Protectorate of Bohemia and Moravia.
For Ostrava and its surroundings, such a short-term concentration camp was set up in the building of the former Second boys' elementary school, later the Third elementary school in Přívoz. Surviving witnesses often speak of the school on Habrmann Street, but the name of the street on which the school stands kept constantly changing with the changes of the political situation in the country: successively it was Dílenská, Lassalova, Koperníkova, Habrmannova and Niny Popovové Street, today it is called Na Mlýnici.
During 1942, deportation transports marked Bh, Bi, Bl, Bm were dispatched from Ostrava, followed by smaller transports Df and Ae 6. In total, 3574 people were deported from the city and its surroundings. Only 257 of them lived to see the liberation.