Zundel was due in Germany last night, immigration officials told the Canadian Press news agency. Officials there have said he would be arrested for decades of anti-Semitic activities, including repeated denials of the Holocaust, which is a crime in Germany.
Zundel, 65, author of "The Hitler We Loved and Why," had been held in a Toronto jail for two years while authorities determined whether he posed a security risk to Canadian society.
Federal Court Justice Pierre Blais ruled last week that Zundel's activities were a threat to national security and "the international community of nations."
"Zundel's day of reckoning has finally come," said Frank Dimant, executive vice president of B'nai Brith Canada. The group had been at the forefront of efforts to boot Zundel from Canada.
"For decades Zundel has spewed his venom and imbued his brand of hate in a new generation of white supremacist groups that had made him a hero," Dimant said in a statement.
Zundel, a leading proponent of white supremacy, claims the Holocaust never happened.
Prosecutors in the southwestern city of Mannheim have issued a warrant for his arrest, the federal Justice Ministry told The Associated Press on Monday.
A spokeswoman for the ministry said authorities were able to open a case against Zundel because his Holocaust-denying Web site is available in Germany, so he is considered to be spreading his message to Germans as well.
The spokeswoman, speaking on the customary condition of anonymity, said he was expected to be taken into custody while a judge reviews the case against him.
Born in Germany in 1939, Zundel emigrated to Canada in 1958 and lived in Toronto and Montreal until 2001. Canadian officials rejected his attempts to obtain Canadian citizenship in 1966 and 1994. He moved to Pigeon Forge, Tennessee, until he was deported back to Canada in 2003 for alleged immigration violations.
Since the late 1970s he has operated Samisdat Publishing, one of the leading distributors of Nazi propaganda and, since 1995, has been a key content provider for a Web site dedicated to Holocaust denial.
Zundel has claimed he is a peaceful man with no criminal record against him in Canada. His lawyer had challenged the constitutionality of the security certificate review process, saying it violated his client's right to free speech and association.
The Canadian security certificate law, passed after the September 11, 2001, attacks in the United States, allows the government to hold terrorism suspects without charge, based on secret evidence that does not have to be disclosed to a suspect or his defense.
White supremacist and Holocaust denier Ernst Zündel was expelled from Canada and arrived in Germany today.  A Federal Court judge ruled that his anti-Semitic activities were "not only a threat to Canada's national security, but also a threat to the international community of nations."

In a press release given by B'nai Brith Canada, executive vice president Frank Dimant said that "For decades Zundel has spewed his venom and imbued his brand of hate in a new generation of white supremacist groups that had made him a hero ... Zundel's day of reckoning has finally come."  Canadian Jewish Congress National President Ed Morgan was quoted as saying that “this is a significant day for the Jewish community (of Canada) and for all those who treasure tolerance in a multicultural society ... Zundel’s departure demonstrates Canada’s abhorrence for those who would propagate Holocaust denial and antisemitism. It brings closure to our efforts to bring this man to justice." 

Zündel's Toronto lawyer, Peter Lindsay, said Zündel is "very disillusioned about the process and about being the victim of a secret trial, and now being deported based on evidence he's never seen."

Upon arriving in Germany, Zündel, 65, was immediately taken into custody by authorities on the grounds that he was running a web site denying the existence of the Holocaust, which is a crime in that country.  Prosecutors in the city of Mannheim have issued a warrant for his arrest according to the Associated Press.  A spokeswoman for the federal Justice Ministry, on condition of anonymity, said authorities were able to open a case against Zundel because his Holocaust-denying site can be accessed in Germany.

In 1977, Zündel founded a small press publishing house called Samisdat Publishers which issued such pamphlets as ''The Hitler We Loved'' and ''Why and Did Six Million Really Die?'' by Richard Harwood aka Richard Verrall (a British neo-Nazi leader) as well as booklets claiming that UFOs were actually Nazi secret weapons operated from secret Nazi military bases in Antarctica.  Zundel lived in Canada for 42 years as a landed immigrant.  His last two years were spent in a Toronto jail, where he was held under the Canadian security certificate law.  The law was passed after the September 11, 2001 attacks in the United States, and allows the Canadian government to hold suspects of terrorism without charge, based on secret evidence that does not have to be disclosed to a suspect or his defense.