Survivors of Auschwitz leave the concentration camp at the end of World War II in February 1945. Above them is the German slogan "Arbeit macht frei," which translates to "Work sets you free."
Galerie Bilderwelt/Hulton Archive/Getty Images

In pictures: The liberation of Auschwitz

Updated 12:46 PM ET, Mon January 27, 2020

Survivors of Auschwitz leave the concentration camp at the end of World War II in February 1945. Above them is the German slogan "Arbeit macht frei," which translates to "Work sets you free."
Galerie Bilderwelt/Hulton Archive/Getty Images

The Soviet Army liberated the Auschwitz concentration camp in Poland on January 27, 1945.

About 7,000 prisoners were in the camp when the Soviets arrived. Those left behind were too weak or sick to move when Nazi SS officers forced nearly 60,000 prisoners to march west as the Soviets approached.

Historians estimate more than 1 million Jews, Gypsies, Soviet prisoners of war and Poles were murdered at the camp.