At the end of the winter of 1941, an additional 4,500 Jews were sent from Vienna to different concentration and extermination camps in Nazi-occupied Poland (mainly Izbica Kujawska and to ghettos in the Lublin area). In June 1942, a transport went directly from Vienna to Sobibor extermination camp, which had around one thousand Jews. In the fall of 1942, the Nazis sent more Jews to the ghettos in the cities they occupied in the Soviet Union: Riga, Kaunas, Vilnius and Minsk. Those Jews were murdered by the Lithuanian, Latvian and Bielorussian collaborators under the supervision of German soldiers, mainly by being shot in forests and buried in mass graves. By October 1942 Austria had only about 2,000 to 5,000 Jews left. About 1,900 of these were sent out of the country during the next two years, and the rest remained in hiding. The total number of the Austrian Jewish population murdered during the Holocaust is about 65,500 people, 62,000 of them known by name. The rest of the Jewish population of Austria, excluding up to 5,000 who managed to survive in Austria, emigrated — about 135,000 people of Jewish religion or Jewish ancestry, compared to the number in 1938. But thousands of Austrian Jews emigrated before 1938. After Second World War After the Holocaust, the Jews throughout Europe who managed to survive were concentrated in Alllied DP camps in Austria. Holocaust survivors who had nowhere to return to after the war remained in the DP camps, and were helped by groups of volunteers who came from Palestine. Until 1955, about 250,000 to 300,000 displaced persons lived in Austria. About 3,000 of them stayed in Austria and formed the new Jewish community. Many of the Jews in the DP camps throughout Europe eventually immigrated to Israel. Many others returned to Germany and Austria. In October 2000 the Judenplatz Holocaust Memorial was built in Vienna in memory of the Austrian Jews who were murdered in the Holocaust. One of the notable prisoners of the Mauthausen concentration camp was Simon Wiesenthal, who after his release worked together with the United States army to locate Nazi war criminals. During the Hungarian Revolution of 1956 about 200,000 Hungarians fled through Austria to the west, among them 17,000 Jews. Seventy-thousand Hungarians stayed in Austria, a number of Jews among them. One of the best-known of them is the political scientist and publicist Paul Lendvai. Details of