the camp. From October 1939 to January 1940, the Germans carried out several public executions of Polish civilians in various locations in Radom, killing 111 people. The Germans also operated a heavy prison in the city, and carried mass arrests of hundreds of Poles, who were then held in the prison. Many Poles expelled from Gdynia in 1939 were placed in a temporary transit camp in a local church, before they were sent to nearby settlements. The occupiers liquidated local cultural and social life. All sports clubs and high schools were closed, and teaching of literature, geography and history in the remaining schools was prohibited. In March and May 1940, the Germans carried out massacres of 210 Poles, including teenagers, from Radom and nearby settlements in the city's Firlej district. Around 100 Poles from Radom were murdered by the Russians in the large Katyn massacre in April–May 1940. In July, August and November 1940, the Germans carried out deportations of Poles from the local prison to the Auschwitz concentration camp. Deportations to concentration camps continued throughout the war, and 18,000 people passed through the local prison, mostly Polish political activists, resistance members and innocent people, plus ordinary criminals. At the large massacre sites in the present-day districts of Firlej and Kosów, the Germans murdered around 15,000 and 1,500 people, respectively. In October 1940, the German occupiers established a forced labour camp for Jews, and in 1941, they formed the Radom Ghetto, with a population of 34,000 Jews, most of whom perished at the Treblinka extermination camp. According to German regulations, sheltering Jews outside the ghetto was punishable by death. The secret Polish Council to Aid Jews "Żegota", established by the Polish resistance movement operated in the city. Radom was a center of Polish resistance, with various organizations, such as Service for Poland's Victory, , Union of Armed Struggle, Bataliony Chłopskie, Grey Ranks and numerous Home Army units operating in the area. The resistance carried out various actions, which included sabotage, stealing weapons, secret education, etc. Poles were even able to produce weapons for Polish partisans in the local arms factory, even though it was seized by the Germans. In 1942, the Germans discovered the activity, and then publicly hanged 50 Poles, including 26 employees of the arms factory, and a pregnant woman. Scouts from the Gray Ranks who worked at the local post office stole and destroyed anonymous letters to