French police said on Monday that they had defused a letter bomb sent to the Greek Embassy in Paris.
Embassy staff called the police after smoke was seen coming out of the parcel.
No injuries were reported.
The incident came a few days after similar devices were sent to the chief executive of Deutsche Bank in Berlin and to a tax office in Rome.
The Rome device detonated, injuring the tax office?s manager.
An Italian anarchist group claimed both hits.