Updated 00:17 AM PHT Wed, October 5, 2016
Zamboanga City (CNN Philippines) — After arresting three suspected Abu Sayyaf members for supposedly planning to bomb a festival in Zamboanga City, local police are on the lookout for more suspects.
Sr. Supt. Luisito Magnaye, Zamboanga City Police Director, on Tuesday said some Abu Sayyaf members wanting to wreak havoc at the Zamboanga Hermosa Festival may still be at large.
Magnaye said the Abu Sayyaf are planning to hurl a hand grenade at RT Lim Boulevard, one of the popular sites in this year's festivities, happening October 1-12.
Magnaye advised the public to be vigilant and report any unusual incident to authorities.
The suspects might also create an improvised explosive device, Magnaye said, since a detonating cord was confiscated from the three suspects arrested on Monday.
Police also recovered grenades, a 45-caliber pistol, and a blasting cap.
Zamboanga Police Office Spokesperson Chief Inspector Helen Galvez identified the first group of suspects as Abde dela Cruz (aka Sherwin), Jabar Ignohasim, and Abdulla Yusup – all residents of Jolo, Sulu.
They are believed to be members of the Sulu-based subgroup of the Abu Sayyaf under the leadership of Alhabsi Misaya, according to police intelligence officers.
The suspects were also planning to kidnap a prominent businessman in Zamboanga City, police said.
Magnaye refused to confirm if one of the suspects in Monday's arrest is involved in the beheading of captives in Sulu province. Magnaye said they are still validating reports.
Zamboanga police officers were about to serve a warrant of arrest against Dela Cruz at a pension house in Zamboanga City when he and two other suspects tried to escape.
The police nabbed the suspects at 2:45 p.m. on Monday.
According to police, the three suspects arrived via a passenger vessel from Jolo Monday morning and checked in at a local pension house.
CNN Philippines' Digital Producer Eimor P. Santos contributed to this report.