The security forces have been ordered to search the building for explosives
The French financial prosecutor's offices in central Paris were briefly evacuated on Monday due to a bomb alert.
The alert prompted by an anonymous telephone call was lifted after a police search of the premises that took about 90 minutes.
The financial prosecutor's office has been at the center of a number of high-profile cases in recent weeks, including investigations into allegations of financial wrongdoing by leading presidential candidates Marine Le Pen and Francois Fillon.