Investigators in Switzerland are continuing to examine the circumstances surrounding the deadly bus fire that occurred in the town of Chiètres. The incident shocked the country when a passenger reportedly set himself on fire inside a regional postal bus, triggering a blaze that quickly spread through the vehicle.

According to authorities, the suspected perpetrator was a 65-year-old Swiss man who was also among those who died in the incident. Officials say the man allegedly poured a flammable liquid on himself before igniting it while the bus was carrying several passengers during an evening route.

The fire spread rapidly inside the confined passenger cabin, leaving several people unable to escape in time. Emergency services responded quickly to the scene, but the intensity of the flames made rescue efforts extremely difficult. Officials later confirmed that six people died, including the suspected perpetrator.

Investigators have stated that the act appears to have been intentional but not linked to terrorism. Instead, the inquiry is focusing on the man’s personal background, including possible psychological struggles and social isolation that may have contributed to the incident.

Early reports suggest that the man had been living in the canton of Bern and had been experiencing personal difficulties. Authorities are examining his recent activities and communications to better understand his mental state leading up to the event.

Witnesses who were on the bus reported noticing unusual behavior from the man shortly before the fire began. Some passengers said he appeared restless and had bags with him, though it remains unclear whether anyone realized what he was about to do.

The tragedy has deeply affected the local community as investigators continue gathering evidence and reconstructing the events that unfolded inside the bus. Authorities say the investigation remains ongoing as they seek to determine the full circumstances surrounding the incident and prevent similar tragedies in the future.