 The camp's guard unit of about 200 to 300 SS personnel was composed mostly of the ethnic German "Volksdeutsche" from occupied Poland and other countries, led by camp commandant Bruno Pfütze and his deputy Paul Weissman.There were up to 5,000 inmates interned in the camp at any time.The prisoners were composed of various nationalities, chiefly European Jews (about 80% of all inmates); by the time the camp begin its operation, the local Jews of Jaworzno (who numbered about 3,000 before the war) and of the rest of Poland have already been mostly exterminated.