After Kristallnacht on 9 November 1938 all male Jews from Stettin were deported to the Oranienburg concentration camp. This was the first deportation of Jews from pre-war Nazi territory. In February 1940, the remaining 1,000 to 1,300 Jews of Stettin were deported to Lublin.
When the war began, the number of non-Germans in the city increased as slave workers were brought in. The first transports came from Bydgoszcz, Torun and Lodz. They were mainly forced to work in a synthetic silk factory near Stettin. During the war, 135 forced labour camps for slave workers were established in the city.