The Simon Wiesenthal Center's letter follows a police complaint filed last week by a rabbi who said he was sworn at for being a Jew by a soccer fan who then raised his arm in the Hitler salute. The incident occurred ahead of a football match between Austria's SK Rapid and Greece's PAOK Saloniki.
The complaint says that instead of detaining the man, one of the officers smiled and said, "Come on, it's a football game!"
The Jewish organization's letter says that through his actions, the police officer turned into an "accomplice to the perpetrator."
Interior Ministry and police officials said Monday that the case was being investigated.