From the moment the Nazis invaded Lodz in September 1939, they unleashed their terror on the Jews. First they destroyed synagogues and looted property. Then they implemented the wearing of the Jewish star and began forcing Jews to relocate. At first they sent Jews from one area of Lodz to work in a camp in nearby Radogoscz. Then they moved other Jews into the area vacated by the deported Jews and began creating a ghetto. By April 1940 they sealed the ghetto and Jews were imprisoned in this area, only allowed to leave with permission.