At least six people were killed and several others injured when a bus caught fire on Tuesday evening (local time) in the town of Kerzers, known in French as Chiêtres, in the Friborg canton of western Switzerland, police said.Emergency services launched a major rescue operation at the scene, with local media reporting that a helicopter was deployed to assist responders. The cause of the fire could not be immediately known. Videos shared by local media showed the bus engulfed in flames, while a resident saw a thick plume of smoke rising from the area. times of India The authenticity of the video could not be confirmed.