Hole opens up on autoroute

Hole - 1.2m across (c) Kapo VS

A section of the A9 autoroute in Valais has been closed to trucks and a lane closed for cars after part of the road collapsed.

A hole over a meter across opened up between Sierre and Sion - and police admit they have no idea why. 

On worries heavy vehicles may cause more problems, any over 3.5 tonnes have to take a detour. 

Engineers are now trying to figure out the reason for the collapse. 

More from Bitesize News