Updated 05:21 AM PHT Thu, December 1, 2016
Metro Manila (CNN Philippines) — The Manila Police District is investigating two people who may be involved in the bombing attempt near the U.S. Embassy.
National Capital Region Police Office (NCRPO) Chief Superintendent Oscar Albayalde clarified — the two are considered "persons of interest" and not suspects pending the result of the probe.
Both are under police custody.
Police said 34-year-old Rayson Kilala Sacdal, also known as Rashid Kilala, was taken in Bulacan at around 10:30 a.m. Wednesday. The other person is from Caloocan, but his identity has yet to be revealed.
Albayalde said the two are natives of Marawi City.
They found the two based on reports gathered by intelligence agents and information submitted by concerned citizens following the release of the composite sketch of the person responsible for the foiled bombing.
The bomb was discovered early Monday morning by a streetsweeper.
The police earlier said the IED found near the U.S. Embassy was similar in design to the bomb used in an explosion in Davao in September that killed 15 people.
CNN Philippines correspondent Joyce Ilas, Gerg Cahiles, Makoi Popioco contributed to this report.