An explosion caused by a homemade device hidden in a letter injured a female employee’s face and arms at the International Monetary Fund (IMF) on Thursday in Paris.  The improvised explosive device detonated as the employee opened the letter, and came after a string of recent telephone threats that have yet to be tied conclusively to the incident.

According to sources, the woman suffered burns on her face and arms, but her injuries are not life threatening.  Shrapnel reportedly struck her in the face and she may also suffer hearing damage due to what the Paris police chief referred to as the “rather violent noise” the explosion produced.  Her identity has not yet been released.

No group has claimed responsibility for the letter bombing thus far, though a militant Greek group called the Conspiracy of Fire Cells has claimed responsibility for a parcel bomb mailed to German Finance Minister Wolfgang Schauble on Wednesday that was discovered by the German finance ministry’s mail department and thwarted by local law enforcement.  There’s no word yet as to whether or not Thursday’s bomb mirrored Wednesday’s in design.

After the explosion, the staff of the International Monetary Fund were evacuated and a combination of military and law enforcement officers established a perimeter around the building as the investigation got underway.  They proceeded to search all four floors of the facility, which included the offices for the World Bank, but found nothing suspicious to report.  Damage to the structure of the building was limited due to the fairly small size of the explosive.  Reports indicate that the device was home-made, but resembled a large fire cracker in composition.