Incident Summary:

12/10/2016: Assailants, including suicide bombers, armed with explosives-laden vehicles, projectiles, and firearms, attacked Palmyra in Homs, Syria. At least 421 people, including 301 assailants, were killed and an unknown number of other people were injured in the ensuing clash that lasted until December 11, 2016. Additionally, an unknown number of people were abducted. At least 12 hostages were executed on January 19, 2017 while the fate of the remaining victims is unknown. The Islamic State of Iraq and the Levant (ISIL) claimed responsibility for the incident.




Middle East & North Africa

region/u.s. state:



Attack Information
Type of Attack (more) Armed Assault
Type of Attack (more) Bombing/Explosion
Type of Attack (more) Hostage Taking (Kidnapping)
Successful Attack? (more) Yes
Target Information (more)
Target Type: Private Citizens & Property
Name of Entity Palmyra City
Specific Description City
Nationality of Target Syria
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 Projectile (rockets, mortars, RPGs, etc.)
Firearms Automatic Weapon
Weapon Details
Explosives-laden vehicles, tanks, rockets, and machine guns 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
Perpetrator Group Information
Group Name Claimed Responsibility
Islamic State of Iraq and the Levant (ISIL) Yes (Confirmed: Unknown; Mode: Video)
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 433 Fatalities
Total Number of Fatalities 433
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 301
Total Number of Injured Unknown
Number of U.S. Injured 0
Number of Perpetrators Injured Unknown
"IS Kills 12 People in Historic Syrian City of Palmyra," Latin American Herald Tribune, January 20, 2017.
"Russian military explain how Palmyra was retaken by IS," Rossiya 24 Television, December 12, 2016.
"Islamic State militants return to Syria's ancient Palmyra ruins; SYRIA CONFLICT (Update)," EFE Newswire - Americas in Focus, December 11, 2016.