Combined elements of Zamboanga City Police Station 3, NAVSOU6, SBU MPAC and NISGWM were conducting maritime patrol off the coast of Barangay Bolong, Zamboanga City at about 12:45 PM on November 28, 2016, when they sighted a motorized pump boat ridden by two alleged members of Abu Sayyaf based in Zamboanga.
The two were allegedly conducting extortion activities on small-scale fishermen. The combined elements confronted the two individuals but they resisted and opened fire towards the authorities. A gun battle and chase ensued that lasted for about fifteen minutes. This resulted in the death of the two suspected ASG members identified as Amsarin Bandahala y Samlani and his brother Mubin Bandahala y Samlani. Recovered from the boat were a Colt cal .45 pistol with serial number 537632 loaded with four rounds of ammunition, a fragmentation grenade, cash, two sachets of suspected shabu, and drug paraphernalia. The seized items were taken into police custody while the dead suspects were brought by their immediate relatives to a funeral home for post-mortem examination.