Hundreds of mourners have gathered in Vienna to say good-bye to Nazi hunter Simon Wiesenthal, who died Tuesday at the age of 96.

Diplomats and political leaders, including Austrian Chancellor Wolfgang Scheussel, packed into a hall at the city's Central Cemetery for the ceremony.

Mr. Wiesenthal will be buried Friday in Israel.

Tributes to the Holocaust survivor have poured in from leaders around the world. President Bush called him a tireless advocate for justice. United Nations Secretary-General Kofi Annan said Mr. Wiesenthal proved there can be no immunity from prosecution for genocide.

Mr. Wiesenthal was born in present-day Ukraine and was an architect before he was sent to a Nazi concentration camp. After U.S. forces freed him in 1945, he spent the rest of his life pursuing escaped Nazi war criminals, including the mastermind of the Holocaust, Adolf Eichmann.

Some information for this report provided by AP.