They were poisoned in the camps. In trucks which were meant to hold twenty people, the Germans placed a hundred. Quicklime was placed on the floor about ten inches deep. The doors were sealed hermetically. These people had to pass their water – that would start the lime cooking. Gas and fumes came up and choked them to death. Bodies were thrown into special crematories on the border between Germany and Poland and burned there. The Germans said it was the most economical method. Their motto was, “Kill Russians with bullets – Jews with gas.”

Jewish Black Book Committee The Black Book: The Nazi Crime Against the Jewish People, 1946