The headquarters of the group, dubbed "Artgemeinschaft," as well as 26 homes belonging to 39 members were searched in the early hours across 12 states,
The letter reveals Einstein's desperate appeal to Scottish philosopher Sir William David Ross to aid in the rescue of a Jewish German philosopher targeted by Nazis.
The speaker's position rapidly became untenable after it emerged that Hunka, who received standing ovations, had served in one of Hitler's SS units during World War II.
Hunka's service history reveals that he served in World War II as a member of the 14th Waffen Grenadier Division of the SS, a fact that has generated controversy.
Yaroslav Hunka, 98, received two standing ovations from Canadian lawmakers. Hunka served in World War Two as a member of the 14th Waffen Grenadier Division of the SS.
Far-right parties have gained ground across Europe but the rise of the AfD touches a particularly sensitive nerve in Germany because of the country's Nazi past.
Jason Brown will be charged with Criminal Mischief after he failed to get permission to display the swastikas on a public bridge.
The letter, dated December 14 1942, proved Pope Pius knew of extermination camps killing Jews and Poles.
After the war, many Nazi officials including death camp supervisor Adolf Eichmann also emigrated to Argentina to avoid trials for war crimes.
During reported conversation, Russian rabbi thanks President Vladmir Putin for 'focus on perils of Nazism'