From the Mindanao Examiner Website (Oct 17): Suspected Abu Sayyaf bomb explodes in Philippines
BASILAN PROVINCE – An improvised explosive went off inside the residential compound of a senior government official in Isabela City in Basilan, one of five provinces under the troubled Muslim autonomous region in southern Philippines, police said Thursday.
Police said the Abu Sayyaf was likely behind the attack on the house owned by Engineer Soler Undug, of the Department of Public Works and Highways. No one was killed or hurt in the blast which occurred late Wednesday.
No individual or group claimed responsibility for the attack, but police said the Abu Sayyaf was allegedly extorting money from the official.
Police said the explosive used in the bombing was ammonium nitrate mixed with fuel oil or AN/FO.
The province is a known stronghold of the Abu Sayyaf which recently pledged allegiance to the jihadist group Islamic State of Iraq and Syria.