German President Christian Wulff has marked the 70th anniversary of a conference where a plan was unveiled to exterminate the Jewish people.
Wulff addressed an event to mark the Wannsee Conference near Berlin where Nazi officials adopted the "final solution" in January 1942.
The president said it is important to never forget the "unbelievable and unimaginable" mass killing of Jews. He said the site where the conference was held and the name "Wannsee" have become a symbol for the "bureaucratically organized decision" between life worth living and that which is not.
Wulff also referred to a group of neo-Nazis believed behind the murder of 10 people, mostly ethnic minorities, between 2000 and 2007.
He said that killing spree fills Germany with "shame and rage," calling for those who carried it out to be brought to justice.
Fifteen senior Nazis under the leadership of Reinhard Heydrich, a top SS official, took part in the Wannsee Conference. They called the meeting to see that Adolf Hitler's plan to exterminate the Jews would be carried out.
The Nazis murdered 6 million Jews during World War II.