At least six people have been killed and three others taken to hospital with severe injuries after a bus caught fire in a town west of the Swiss capital, police said.
Police spokesperson Frederic Papaux, of the Fribourg region, said an unspecified “voluntary act” could be the cause of the inferno on Tuesday evening in the town of Kerzers, about 15 miles west of Bern, the capital.
The city transport bus is operated by PostBus, which is affiliated with the national postal service.
Images from the scene on Swiss media showed flames tearing through the bus.
“After rushing to the scene, rescue teams noted that the vehicle was totally engulfed in flames,” the regional government said in a statement.