Incident Summary:

04/09/2017: A suicide bomber detonated at Mar Girgis Church in Tanta, Gharbia, Egypt. In addition to the assailant, at least 30 people were killed and 89 other people were injured in the blast. This was one of two suicide bombings targeting churches in Egypt on the same day. The Revolution's Brigade and the Islamic State in Egypt separately claimed responsibility for the incident. Sources also suspected that the attack was carried out by the Hasam Movement.




Middle East & North Africa

region/u.s. state:



Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Religious Figures/Institutions
Name of Entity Mar Girgis Church
Specific Description Church
Nationality of Target Egypt
Additional Information
Hostages No
Ransom No
Property Damage Yes
Extent of Property Damage Minor (likely < $1 million)
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Explosives Suicide (carried bodily by human being)
Weapon Details
A nine-kilogram explosives-laden belt was used in the attack.
Additional Information
Suicide Attack?Yes
Part of Multiple Incident?Yes
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
Hasam Movement (suspected) No
Islamic State in Egypt Yes (Confirmed: Unknown; Mode: Posted to website, blog, etc.)
Revolution's Brigade Yes (Confirmed: Unknown; Mode: Unknown)
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 31 Fatalities / 89 Injured
Total Number of Fatalities 31
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 1
Total Number of Injured 89
Number of U.S. Injured 0
Number of Perpetrators Injured 0
"Death toll of Palm Sunday attack in Tanta rises to 30 people," Egypt Today, May 29, 2017.
"Tanta church attack death toll rises to 29," Egypt Independent, April 23, 2017.
"Investigations to reveal identity of Palm Sunday attackers ongoing," Daily News Egypt, April 11, 2017.