4 Die After Collapsing Inside Fishing Vessel Hatch in Zamboanga City

PAGADIAN CITY, Zamboanga del Sur — A routine maintenance protocol turned catastrophic when a highly toxic, invisible atmosphere trapped a localized workforce inside a confined commercial cargo space. Four crewmen tragically lost their lives after collapsing inside the under-deck storage hatch of the commercial fishing vessel F/V Kevin.

The fatal industrial incident occurred while the vessel was docked at a prominent regional sardine processing facility in Barangay Cawit, Zamboanga City.

Police Regional Office-9 Spokesperson Major Shellamie Chang detailed the rapid, heartbreaking sequence of events that occurred on Thursday morning, June 11:

                        [ THE F/V KEVIN CONFINED SPACE INCIDENT ]
                                           │
         ┌─────────────────────────────────┴─────────────────────────────────┐
         ▼                                                                   ▼
   [ THE UNSEEN ACCIDENTS ]                                          [ THE RESCUE TRAP ]
 • **06:45 AM - The Initial Entry:** Shortly after the vessel finished • **The Electrical Miscalculation:** Believing the initial 
   unloading its fish cargo, two crew members entered the deep hold • workers had fainted from an electrical shock or equipment short, 
   to begin manual cleanup operations.                              • crew members immediately shut down the vessel's primary generator.
 • **Immediate Collapse:** Within moments of stepping inside, both  • **The Secondary Losses:** Two brave colleagues rushed into the 
   men were overwhelmed by gas buildup, losing consciousness.       • hatch to pull them out, but were instantly overcome as well.

Realizing the true danger was atmospheric rather than electrical, the remaining crew adapted their rescue strategy before local emergency teams arrived:

[ EMERGENCY EXTRACTION & RESPONSE ]
                    │
                    ▼
[ Masked Extraction ]    ──► Improvising quickly, the remaining crew members donned heavy **face masks** 
                             to enter the hatch and successfully pull the four unconscious bodies out to the open air.
                             │
                            ▼
[ Emergency Hospital Run ]──► Responders from the City Disaster Response Team and the Talisayan Police Station 
                             rushed the victims to nearby medical centers, where they were tragically declared dead.
                             │
                             ▼
[ Atmospheric Hazards ]  ──► Industrial investigators are looking into a fatal combination of severe **oxygen deficiency** 
                             and the accumulation of toxic gases (like hydrogen sulfide) caused by organic matter decomposition.

Industrial shipping vessels utilize sealed, deep-set hulls to transport tonnage. When organic fish scraps decompose in unventilated, wet spaces, they generate highly toxic, heavier-than-air gases that can suffocate a human in seconds.

Critical Industrial Warning: Confined vessel spaces—especially fish holds—are notorious for trapping lethal concentrations of hydrogen sulfide and carbon dioxide while depleting breathable oxygen. Entering these spaces without active mechanical ventilation, oxygen meters, and proper self-contained breathing apparatus (SCBA) often proves immediately fatal to both workers and unequipped rescuers.

The heartbreaking tragedy aboard the F/V Kevin highlights the extreme, hidden dangers of maritime maintenance work. What started as a routine cleaning job quickly turned into a fatal trap due to an unventilated storage hold. The most tragic part of the incident was the rescue attempt; because the crew naturally assumed an electrical problem was at fault, two more workers walked directly into the toxic atmosphere without realizing the air itself was lethal. This chain-reaction pattern is incredibly common in confined-space accidents, where the desire to save a teammate overrides safety protocols. As local authorities and labor inspectors from DOLE review the safety practices at the Cawit canning plant throughout 2026, this disaster serves as a grim reminder that strict gas testing must be mandatory before anyone sets foot inside a ship’s hold.