The remains of Adolf Hitler were burned in 1970 by Soviet KGB agents and thrown into a river in Germany on direct orders from the spy agency's chief, a top Russian security official said this week.

The head archivist of Russia's Federal Security Service (FSB) -- the successor to the former Soviet Union's KGB -- confirmed for the first time the chain of events that led to the disposal of Hitler's body, and who ordered the operation, in an exclusive interview with Russia's Interfax news agency.

Gen. Vasily Khristoforov told Interfax in an interview published Monday that previously secret documents show that KGB chief Yuri Andropov, with prior consent from the Soviet Communist Party leadership, ordered a top secret operation to destroy the remains of Hitler, his wife Eva Braun, Nazi Germany's propaganda chief, Joseph Goebbels; and Goebbels' entire family.

Khristoforov said according to the documents, Andropov's decision to destroy the remains of the Nazi leaders and their family members was motivated by the fears of the KGB and Soviet Communist Party leadership that Hitler's burial site could become a place of worship for supporters of fascist ideas.