MANILA, Philippines - The Philippine National Police (PNP) affirmed that the bombing which took 14 lives and harmed 67 at a night market in Davao City was brought on by an improvised explosive device (IED).
PNP chief Director General Ronald dela Rosa, in a press conference at the Police Regional Office 11, said parts of IED found at the blast site were confirmed by the Special Investigative Task Group (SITG) formed to probe the incident.
Initial reports showed that the bomb was designed from mortar ammunition.
Read: OFWs around the globe
The Davao police are presently hot on trail of four "persons of interest," two men and women, believed to be behind the dangerous bombing on Roxas Boulevard in Davao City on Friday night.
Dela Rosa declined to give further details, saying they are yet to release to public the cartographic sketch of the suspects.
While the Abu Sayyaf Bunch has apparently claimed responsibility of the assault, authorities said the "act of owning the explosion" is something they anticipate from the group.
Traveling to the Philippines? Rent a pocket wifi in the Philippines.
The authorities said that they are as yet checking whether the bombing was surely executed by the Abu Sayyaf and are not discounting any factors which could give light to what happened.
The PNP and the Military, in the mean time, have placed the entire forces on a nationwide full alert status.