World leaders and survivors stopped to remember the horror of the Holocaust today at a snow-swept ceremony in Auschwitz-Birkenau on the 60th anniversary of the liberation of the Nazi death camp.
Polish survivor, Mr Kazimierz Orlowski
Surrounded by barbed wire fences and remnants of the killing machine used to gas and incinerate some of the six million Jews who died in the Holocaust, the leaders vowed that the World War Two atrocity must never be forgotten.
Up to 1.5 million people died in the gas chambers and crematoria of Auschwitz-Birkenau, set up by Nazi Germany in occupied Poland during World War Two as the main centre of their "Final Solution", the genocide of European Jews.
Auschwitz was liberated on January 27th, 1945, by the advancing Soviet army whose stunned soldiers released 7,000 emaciated prisoners left behind as the Germans withdrew.
"The snow was falling like today, we were dressed in stripes and some of us had bare feet," Polish survivor Mr Kazimierz Orlowski (84) said. "These were horrible times."
Candles were lit along the snow-covered rail tracks used during the war to take Jews and others in cattle trains to the camp, where many were gassed to death on arrival.
A whistle, the sound of a stopping train and door being flung open were played at the start of the ceremony in Birkenau, the camp's main extermination centre, to symbolise the arrival of the Nazi victims.
Elderly survivors, many accompanied by younger relatives, and some wrapped in blankets to keep warm, walked slowly past the rusting wire fences under a dark grey sky and heavily falling snow towards a monument to the victims.
"I am not here to talk about what happened. My only aim is to light a candle for my mother, whose ashes are who knows where in this camp," said Mr Jan Wojciech Topolewski, a former prisoner whose mother died in Auschwitz.
Next to the ruins of crematoria, huge flames were burning in memory of the victims.
"I want to say to all people around the world - this should not happen again," said Major Anatoly Shapiro, the commander of the troops who first entered Auschwitz. "I saw the faces of the people we liberated - they went through hell," he told an earlier ceremony in the southern Polish city of Krakow, some 70 km (44 miles) from Auschwitz.
Among the more than 30 heads of state attending the ceremonies were the presidents of Israel, Germany and Russia, representing the victims, the perpetrators and the liberators.
"The story of the camps reminds us that evil is real and must be called by its name and confronted," US Vice President Dick Cheney said earlier.
"We are reminded that anti-Semitism may begin with words but rarely stops with words and the message of intolerance and hatred must be opposed before it turns into acts of horror."
Israeli President Moshe Katsav said: "We fear anti-Semitism. We fear Holocaust denial, we fear a distorted approach by the youth of Europe,".
French President Jacques Chirac, the first French leader to acknowledge France's complicity in the Holocaust, said the European Union would stand united to counter anti-Semitism.
Set up in 1940 by the occupying Nazis, Auschwitz was initially a labour camp for Polish prisoners but grew into a death factory for European Jews shipped there from around Europe and Russia. At its peak the camp could hold 400,000 people.
More than one million Jews were killed but Gypsies, Poles, Russians also died in the camp. Hundreds were subjected to medical experiments by Nazi doctors trying to prove theories of Aryan supremacy.