After the German-Soviet invasion of Poland, which started World War II in September 1939, the town was invaded and occupied by Nazi Germany. Łabiszyn was one of the sites of executions of Poles carried out by Germany in 1939 as part of the "Intelligenzaktion". In 1940, the Germans renamed the town "Lüderitz," in memory of Adolf Lüderitz, founder of the German South West Africa colony. Towards the end of World War II in 1945, the town was captured by the Red Army and restored to Poland.