Silesia, and Pomerania died during the evacuations, some from cold and starvation, some during combat operations. A significant percentage of this death toll, however, occurred when evacuation columns encountered units of the Red Army. Civilians were run over by tanks, shot, or otherwise murdered. Women and young girls were raped and left to die. In addition, fighter bombers of the Soviet air force flew bombing and strafing missions that targeted columns of refugees. Although mass executions of civilians by the Red Army were seldom publicly reported, there is a known incident in Treuenbrietzen, where at least 88 male inhabitants were rounded up and shot on 1 May 1945. The incident took place after a victory celebration in which numerous girls from Treuenbrietzen were raped and a Red Army lieutenant-colonel was shot by an unknown assailant. Some sources claim that as many as 1,000 civilians may have been executed during the incident. The first mayor of the Charlottenburg district of Berlin, Walter Kilian, appointed by the Soviets after the war ended, reported extensive looting by Red Army soldiers in the area: "Individuals, department stores, shops, apartments ... all were robbed blind." In the Soviet occupation zone, members of the SED reported to Stalin that looting and rape by Soviet soldiers could result in a negative reaction by the German population towards the Soviet Union and the future of socialism in East Germany. Stalin is said to have angrily reacted: "I shall not tolerate anybody dragging the honour of the Red Army through the mud." Accordingly, all evidence — such as reports, photos and other documents of looting, rape, the burning down of farms and villages by the Red Army — was deleted from all archives in the future GDR. A study published by the German government in 1974 estimated the number of German civilian victims of crimes during expulsion of Germans after World War II between 1945 and 1948 to be over 600,000, with about 400,000 deaths in the areas east of Oder and Neisse (ca. 120,000 in acts of direct violence, mostly by Soviet troops but also by Poles, 60,000 in Polish and 40,000 in Soviet concentration camps or prisons mostly from hunger and disease, and 200,000 deaths among civilian deportees to forced labor of Germans in the Soviet Union), 130,000 in Czechoslovakia (thereof 100,000 in camps) and 80,000 in Yugoslavia (thereof 15,000 to 20,000 from violence outside of and