Authorities investigating the tragedy that claimed the lives of five divers in Mariveles have entered what officials describe as one of the most important phases of the case, as forensic specialists work to determine exactly what happened during the fatal dive.

According to investigators, the inquiry is now focused on combining witness testimony from surviving divers with newly completed toxicology reports, medical examinations, and autopsy findings in an effort to reconstruct the final moments before the experienced dive team encountered trouble underwater.

Officials say the goal is to establish a precise timeline of events and identify the sequence of factors that led to the deaths.

The investigation has drawn significant attention because of the number of victims involved and the questions surrounding how multiple experienced divers could become incapacitated during the same operation.

Forensic teams are reportedly analyzing several categories of evidence simultaneously, including environmental conditions, dive profiles, equipment performance, medical findings, and survivor accounts.

Investigators believe the combination of these elements may provide the clearest picture yet of what occurred beneath the surface.

Toxicology specialists have reportedly completed laboratory examinations designed to determine whether any substances, gases, contaminants, or physiological factors contributed to the emergency.

At the same time, medical examiners have finalized key portions of the autopsy process, documenting injuries, physical trauma indicators, and respiratory findings that may help explain the divers’ final moments.

Authorities have not yet publicly released all of the conclusions contained within those reports.

However, officials indicated that the forensic evidence is being carefully compared against statements from surviving witnesses in order to verify timelines and identify any inconsistencies or previously unknown details.

Dive safety experts note that investigations involving multiple diver fatalities are often highly complex because numerous factors can contribute simultaneously to a disaster.

Potential issues may include environmental hazards, currents, visibility problems, gas-management complications, equipment failures, medical emergencies, entanglement risks, rapid ascents, or physiological reactions occurring at depth.

Determining the precise cause often requires extensive analysis of both human and environmental evidence.

Investigators are also examining whether conditions in the deeper portions of the dive zone may have played a role in the tragedy.

Specialists continue reviewing depth data, underwater terrain information, weather conditions, and operational procedures followed before the incident occurred.

The findings are expected to help establish whether the divers encountered an unexpected hazard or whether a chain of events gradually developed beneath the surface.

Meanwhile, relatives of the victims continue awaiting answers as the investigation progresses.

The tragedy has generated widespread attention within the diving community, where many experienced divers are closely following developments in hopes of understanding what factors contributed to the disaster.

Safety organizations frequently stress that even highly trained divers can become vulnerable when multiple complications occur simultaneously underwater.

Authorities have not announced when a final report will be released, but officials indicated that the newly completed toxicology and autopsy data represent major milestones in the investigation.

For many observers, the central question remains unchanged:

what happened beneath the surface that left five experienced divers unable to return safely?

Investigators now hope that the combination of scientific evidence, laboratory analysis, and eyewitness testimony will finally provide the answer.