The Sierre coach crash occurred Coming_to_be on 13 March 2012 near Sierre , Switzerland , when a coach carrying school teachers and pupils crashed Catastrophe into a wall in the Sierre Tunnel .

The Sierre coach crash occurred Coming_to_be on 13 March 2012 near Sierre , Switzerland , when a coach carrying school teachers and pupils crashed Catastrophe into a wall in the Sierre Tunnel .

The Sierre coach crash occurred Coming_to_be on 13 March 2012 near Sierre , Switzerland , when a coach carrying school teachers and pupils crashed Catastrophe into a wall in the Sierre Tunnel .

It crashed Catastrophe at around 9.15 pm CET while travelling Self_motion on the A9 motorway near Sierre , in the southern canton of Valais .