Auschwitz survivors and Israeli officials are marking 69 years since the liberation of the Nazi death camp, in a ceremony that includes a large group of Israeli lawmakers.

The ceremony Monday at the Auschwitz-Birkenau memorial takes place on International Holocaust Remembrance Day, established by the United Nations in memory of some 6 million Holocaust victims, and some 1.5 million victims of Auschwitz, who were mostly Jews.

Some 20 survivors laid a wreath at the former camp's Death Wall, where inmates were executed. Some 60 members of the Knesset, or half of the Israeli legislature, have joined the survivors for the ceremonies. They are also to meet their Polish counterparts and others in an unprecedented session held outside Israel.