Incident Summary:

10/11/2001: A letter sent to the offices of the Environmental Program for the United Nations in Nairobi, Nairobi county, Kenya, contained a white powdery substance suspected to be anthrax. The letter was addressed to an employee at the office and had a postage stamp originating from Pakistan. No group claimed responsibility for the attack.




Sub-Saharan Africa

region/u.s. state:



Location Details:
The offices of the Environmental Program of the United Nations

Attack Information
Type of Attack (more) Unarmed Assault
Successful Attack? (more) No
Target Information (more)
Target Type: Government (Diplomatic)
Name of Entity The United Nations Environment Program
Specific Description The Environment Program and its employees
Nationality of Target Kenya
Additional Information
Hostages No
Ransom No
Property Damage No
Weapon Information
Type Sub-type
Weapon Details
The letter was brown and tattered, with the word "immaculate" written where the stamp would be. It had postage from Pakistan, and the writing was in blue ink. It contained a white powder substance.
Additional Information
Suicide Attack?No
Part of Multiple Incident?Yes
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) No
Additional Information The success of this event was listed as unknown as it was not clear whether there was any anthrax in the letter, or if anyone was exposed to it.
Perpetrator Group Information
Group Name Claimed Responsibility
Unknown No
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 0 Fatalities
Total Number of Fatalities 0
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 0
Total Number of Injured Unknown
Number of U.S. Injured 0
Number of Perpetrators Injured 0
Andrew England, "In first anthrax case overseas, spores found in package mailed to Kenya," Associated Press, October 18, 2001.
"Kenya family is the first victim of bioterrorism outside U.S.," EFE News Service, October 18, 2001.
Karl Vick, "Man in Kenya gets U.S. letter containing anthrax," Washington Post, October 19, 2001.