Incident Summary:

11/05/2017: Two suicide bombers detonated explosives-laden vehicles outside the Criminal Investigation Department (CID) building in Khur Maksar neighborhood, Aden, Yemen. Following the blasts, additional assailants then stormed the compound, set the building on fire, and took an unknown number of hostages. Overnight four additional suicide bombers detonated as security forces attempted to retake the building. At least 55 people, including nine assailants, were killed and 47 other people were injured in the attack; the victims included security forces and civilians. The Adan-Abyan Province of the Islamic State claimed responsibility for the attack. Sources also suspected that the incident was carried out by Al-Qaida in the Arabian Peninsula (AQAP).




Middle East & North Africa

region/u.s. state:



Location Details:
The incident occurred in the Khur Maksar neighborhood.

Attack Information
Type of Attack (more) Armed Assault
Type of Attack (more) Bombing/Explosion
Type of Attack (more) Hostage Taking (Barricade Incident)
Successful Attack? (more) Yes
Target Information (more)
Target Type: Police
Name of Entity Criminal Investigation Department (CID)
Specific Description Building
Nationality of Target Yemen
Target Type: Private Citizens & Property
Name of Entity Not Applicable
Specific Description Civilians
Nationality of Target Yemen
Additional Information
Hostages Yes
Number of Hostages Unknown
US Hostages 0
Outcome Combination
Ransom No
Property Damage Yes
Extent of Property Damage Unknown
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Explosives Vehicle
Explosives Suicide (carried bodily by human being)
Firearms Unknown Gun Type
Weapon Details
An explosives-laden vehicle, explosives-laden vests, and firearms were used in the attack.
Additional Information
Suicide Attack?Yes
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) No
Additional Information Casualty numbers conflict across sources. Following GTD protocol, the most recent reliable estimates are reported here.
Perpetrator Group Information
Group Name Claimed Responsibility
Adan-Abyan Province of the Islamic State Yes (Confirmed: Unknown; Mode: E-mail)
Al-Qaida in the Arabian Peninsula (AQAP) (suspected) No
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 55 Fatalities / 47 Injured
Total Number of Fatalities 55
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 9
Total Number of Injured 47
Number of U.S. Injured 0
Number of Perpetrators Injured Unknown
"At least 15 killed in ISIL attack on Yemen security HQ," Al Jazeera, November 5, 2017.
"Yemen hostage crisis claimed by IS ends with 35 dead," Bangladesh Daily Star, November 6, 2017.
"Death toll rises to 35 in Aden attack," Gulf News, November 6, 2017.