Incident Summary:

12/03/2010: On Friday, in the neighborhood of Roysambu in Nairobi, Nairobi Area, Kenya, in one of two related attacks, two suspected militants, identified as David Kahuho Wangechi and John Mwanzia Ngui, were riding a motorcycle as they fired upon and killed two policemen and threw a grenade at nearby civilians on the Thika road. No damage was reported and no group has claimed responsibility, but the militant group Al Shabaab was thought responsible for the attack.




Sub-Saharan Africa

region/u.s. state:



Location Details:
The attack occurred on the Thika road in the neighborhood of Roysambu in Nairobi, Nairobi Area, Kenya.

Attack Information
Type of Attack (more) Armed Assault
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Police
Name of Entity Nairobi Law Enforcement
Specific Description Policemen
Nationality of Target Kenya
Target Type: Private Citizens & Property
Name of Entity
Specific Description Civilians were targeted in the attack.
Nationality of Target Kenya
Additional Information
Hostages No
Ransom No
Property Damage Unknown
Extent of Property Damage Unknown
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Firearms Unknown Gun Type
Explosives Grenade
Weapon Details
A grenade and unknown firearms were used in the attack.
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
Perpetrator Group Information
Group Name Claimed Responsibility
Al-Shabaab (suspected) No
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 2 Fatalities / 0 Injured
Total Number of Fatalities 2
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 0
Total Number of Injured 0
Number of U.S. Injured 0
Number of Perpetrators Injured 0
Radio Horseed, "Somali Islamists Deny Responsibility for Nairobi Bombing," World News Connection, Radio Horseed, December 10, 2010.
Fred Mukinda, "Police Find Al-Shabaab Link in Grenade Attacks," (December 11, 2010).
The Star, "Suspected Al Shabaab Terror Squad Named," said Ongeri. (March 8, 2011).