During the war, Nazi official Kurt Gerstein told a Swedish diplomat about life in a death camp. On 19 August 1942, Gerstein arrived at Bełżec extermination camp, which had carbon monoxide gas chamber. At the time 45 railroad cars, filled with 6,700 Jews, were being unloaded. Many of the Jews had died on the trip. The rest were marched naked to the gas chambers. There Gerstein said: