The ceremony is widely regarded as the last major observance likely to see a significant number of survivors in attendance.

Auschwitz survivors were being joined by world leaders on Monday to mark the 80th anniversary of the liberation of the Nazi German death camp by Soviet troops, one of the last such gatherings of those who experienced its horrors.

Auschwitz survivors were being joined by world leaders on Monday to mark the 80th anniversary of the liberation of the Nazi German death camp by Soviet troops, one of the last such gatherings of those who experienced its horrors.

World leaders rubbed shoulders with 56 survivors of Hitler's death camp as they marked 80 years since its liberation.

Around 50 survivors of the Nazi concentration camp Auschwitz gathered together for the 80th anniversary of the liberation of the camp.

Auschwitz survivors warned of the dangers of rising antisemitism on Monday, as they marked the 80th anniversary of the liberation of the Nazi German death camp by Soviet troops in one of the last such gatherings of those who experienced its horrors.

Elderly camp survivors, some wearing striped scarves that recall their prison uniforms, walked to the the Death Wall, where prisoners were executed. Across Europe, officials were pausing to remember.

In all, the Nazi regime murdered 6 million Jews from all over Europe, annihilating two-thirds of Europe's Jews and one-third of all Jews worldwide. In 2005, the United Nations designated Jan. 27 as International Holocaust Remembrance Day.

Polish President Andrzej Duda remembered the victims of the Nazis at the Auschwitz-Birkenau memorial site, as 80th anniversary commemorations got under way on Monday. "We Poles, on whose land occupied by Nazi Germany this extermination industry and this concentration camp were built,

At Auschwitz, the Germans left behind barracks and watchtowers, the remains of gas chambers and the hair and personal belongings of people killed there. The “Arbeit macht frei” (work will set you free) gate is recognized the world over.

Watch as Holocaust survivors returned to Auschwitz in Poland on Monday, 27 January, marking 80 years since the concentration camp was liberated. Holocaust Memorial Day is held yearly on 27 January to commemorate the memory of the six million Jews and other groups who the Nazis murdered in the Holocaust.