World leaders joined Holocaust survivors on Monday at Auschwitz to mark the 75th anniversary of the liberation of the Nazi German death camp and honor its victims.

Crowds held a candlelight vigil along the rail tracks leading up to the camp before placing candles at the Monument to the Victims of Fascism.

"Our duty is to fight anti-Semitism, racism and fascist nostalgia - those sick evils," Israel's President Reuven Rivlin said on the day of the commemoration.

More than 1.1 million people, most of them Jews, died in the Auschwitz camp.