A regional bus caught fire Tuesday evening on a main road in this western Swiss town, killing six people and injuring five others as police and prosecutors opened an investigation into whether someone on board deliberately started the blaze.
The deaths drew immediate national attention because the fire struck an ordinary public transit run in a small town near Bern, not a long-distance coach or an industrial site. Fribourg cantonal police said the bus was engulfed on Murtenstrasse at about 6:25 p.m. Rescue crews found the vehicle fully aflame. By late night, authorities had confirmed six deaths, said three injured people had been taken to hospitals with severe injuries, and said two more people were treated at the scene. Officials had not publicly identified the dead and said the case was being handled as a criminal investigation.
Police said the first emergency call came shortly after 6:25 p.m. Tuesday, sending firefighters, ambulances and a helicopter to the center of Kerzers, a town in Fribourg canton about 20 to 25 kilometers west of Bern. By the time crews arrived, the PostBus was already consumed by flames. Firefighters began rescue and extinguishing work while officers sealed off the area with barriers and screens. The burned shell of the bus remained in place for hours as investigators worked around it. Frederic Papaux, a spokesperson for Fribourg police, said panicked and injured passengers were seen getting out as first responders reached the scene. He also said no other vehicle was involved. Images from Swiss media and wire photographers showed a charred yellow bus standing alone on the wet street, with foam, hoses and emergency tape spread across the roadway as night fell over the town center.
What investigators said next quickly turned the fire from a traffic emergency into a possible criminal case. Papaux told reporters that police had elements suggesting a deliberate act by a person who was inside the bus. Christa Bielmann, another police spokesperson, said investigators were examining reports that someone may have poured fuel on themselves before the fire broke out. She said it was too early to say whether terrorism played any role. Authorities have not named a suspect, announced an arrest or described where inside the bus the fire may have started. They also have not said how many people were on board in total, a basic fact that remained unsettled late Tuesday even as the casualty count was confirmed. Police said they knew the identities of the injured, but the dead had not yet been publicly identified. By early Wednesday, a police spokesman said that forensic work meant identifying the victims could take several days.
The setting helps explain why the fire has shaken Switzerland so quickly. The vehicle was part of the PostBus network, the familiar yellow regional system linked to the national postal service that carries passengers between smaller towns, villages and rail connections. In places like Kerzers, these buses are part of everyday life, used for work trips, errands and school travel. That made the scene on Murtenstrasse especially stark: a routine local bus route turned into the center of a mass-fatality inquiry. The incident also came weeks after another major fire in Switzerland, the January blaze at a bar in Crans-Montana that killed dozens of people and injured many more. That earlier disaster had already put fire safety and emergency response under close public attention. Tuesday’s bus fire added a different fear, the possibility that an ordinary transit ride may have been transformed by an intentional act that unfolded within minutes and left little time for escape.
The legal and procedural picture is still in its first stage, but officials have outlined the next steps. Fribourg police said a criminal investigation was opened under the direction of public prosecutors. That means investigators are expected to focus on witness interviews, forensic examination of the bus, medical updates on the survivors, identification of the dead and reconstruction of where passengers were located when the fire began. Officials also opened a hotline Tuesday night as families and possible witnesses looked for information. Police asked the public to stay away from the area while work continued. Because the bus was so badly damaged, officers warned that the on-site inquiry would take hours. The lack of confirmed identities for the victims means prosecutors still face a basic task before they can provide a fuller public timeline. It also means many families were left waiting overnight for official confirmation about who had survived and who had not.
Public reaction moved quickly from shock to mourning. Fribourg’s cantonal government issued condolences to the families and praised firefighters, medics and police for handling what it called an exceptional emergency. Swiss President Guy Parmelin also offered condolences and said the case was under investigation. His statement reflected how fast the fire had grown from a local disaster into a national story. At the scene, the visual details underscored that shift. Rescue workers gathered under a red tent near the cordoned street. Forensic staff moved behind white screening placed around the wreck. The bus itself appeared burned almost to its frame, with darkened windows and exposed interior metal visible through the shell. For residents of a small town used to quiet evening traffic, the transformation was severe and abrupt. A familiar stop on a public road had become a closed investigation zone, guarded through the night while police tried to determine how six people died on a bus ride that should have ended like any other.
Late Tuesday and early Wednesday, authorities still had not named the six people who died and had not said exactly how the fire started. The next milestone is expected to come as prosecutors and Fribourg police release more details from the forensic inquiry and the victim identification process in the days ahead.
Author note: Last updated March 10, 2026.