Important information for drivers of foreign heavy goods vehicles (total authorised weight exceeding 3.5T) to, in transit through, and out of Switzerland 07.02.2008 | 131 kb | PDF
The coach was travelling westwards on the A9 motorway from Siders in the direction of Sitten, and crashed in the “Sierre” tunnel. For reasons that have yet to be clarified, the coach initially struck the tunnel wall and then crashed head on into a service bay. It was taking schoolchildren back to Belgium after a skiing holiday in Valais.