Incident Summary:

08/07/2017: An assailant was arrested attempting to enter the Grand Mansouri Mosque in Tripoli, Lebanon. The assailant was carrying a backpack with grenades and multiple knives. The assailant confessed to being a member of the Islamic State of Iraq and the Levant (ISIL).




Middle East & North Africa

region/u.s. state:



Attack Information
Type of Attack (more) Armed Assault
Successful Attack? (more) No
Target Information (more)
Target Type: Religious Figures/Institutions
Name of Entity Grand Mansouri Mosque
Specific Description Mosque
Nationality of Target Lebanon
Additional Information
Hostages No
Ransom No
Property Damage No
Weapon Information
Type Sub-type
Explosives/Bombs/Dynamite Grenade
Melee Knife or Other Sharp Object
Weapon Details
Two grenades and two knives were used in the attack.
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) No
Additional Information The assailant stated that he planned to target worshippers with grenades. Following this initial phase, he then planned on attacking a security guard and stealing a firearm to be used on the remaining people in the mosque.
Perpetrator Group Information
Group Name Claimed Responsibility
Islamic State of Iraq and the Levant (ISIL) Yes (Confirmed: Unknown; Mode: Personal claim)
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 0 Fatalities / 0 Injured
Total Number of Fatalities 0
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
"Lebanese teen arrested over planned Tripoli mosque attack," The Daily Star (Lebanon), August 12, 2017.