They were founded in places where the Wehrmacht and German police units established camps. There were 19 such camps in the following places: Bydgoszcz (Bromberg), Brodnica (Strasburg), Chełmno (Kulm), Dorposz Szlachecki, Kamień Krajeński, Karolewo, Lipno (Lippe), Łobżenica, Nakło (Nakel), Nowy Wiec (near Skarszewy), Nowe (over Vistula), Piastoszyn, Płutowo, Sępólno Krajeńskie, Solec Kujawski (Schulitz), Tuchola (Tuchel), Wąbrzeźno (Briesen), Wolental (near Skórcz), Wyrzysk (Wirsitz). The majority of the Poles imprisoned in those camps (consisting of men, women and youth) were brutally murdered.[6]