Incident Summary:

06/26/2011: On Sunday morning around 0820, in one of two related attacks, in Amas village, Kidapawan, Cotabato, Mindana, Philippines, suspected Jemaah Islamiya (JI) militants detonated an improvised explosive device near the office of the Commission on Audit (COA) office. The improvised explosive device was made from a 60-millimeter mortar shell with a cell phone as its detonation device. The specific motive for the attack is unknown; however, military reports indicated that the attack was related to the peace talks between the government and the Moro Islamic Liberation Front (MILF). The attack caused an unknown amount of property damage, but resulted in no casualties. No group claimed responsibility for the attack.




Southeast Asia

region/u.s. state:

North Cotabato


Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Government (General)
Name of Entity Commission on Audit
Specific Description The Commission on Audit (COA) office was targeted in the attack.
Nationality of Target Philippines
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 Other Explosive Type
Weapon Details
An improvised explosive device made from a 60-millimeter mortar shell with a cell phone as its detonation device was 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
Jemaah Islamiya (JI) (suspected) No
Perpetrator Statistics
Number of Perpetrators Unknown
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
Philippine Daily Inquirer, “Jemaah Islamiyah Military Tags Followers of Jemaah Islamiyah Leader in Cotabato Blast,” World News Connection, Philippine Daily Inquirer, July 5, 2011.
Philippines News Agency, “Blast Occurs near COA, TESDA Offices in North Cotabato Highway; Nobody Hurt,” LexisNexis Academic, Philippines News Agency, June 27, 2011.
BBC Monitoring Asia Pacific, “Philippines: Islamist Students said Behind Series of Blasts in Mindanao," LexisNexis Academic, Philippine Daily Inquirer, June 28, 2011.