One person has been injured in Paris in a small explosion after opening an envelope at the offices of the International Monetary Fund, French media is reporting. But police are on the scene looking for evidence.
It came a day after an explosive package was found at the offices of Germany's finance minister, Wolfgang Schäuble.
Greek police have said the explosive mix was sent from Greece.
The French capital has been on high alert following a spate of high-profile terrorist attacks in the past two years.
He said the employee suffered head and hand injuries and was receiving medical treatment.
Police said one person was injured when the envelope blew up at the offices in central Paris.
Several people were evacuated "as a precautionary measure", according to le Fiagro, and the Parisian judicial police opened an investigation.
That attack was claimed by the Greek radical anarchist organisation Conspiracy of Fire Nuclei.