Engineers examining why the cracks appeared in the Gotthard Road tunnel are exploring the possibility they could have been caused by the tunnelling for the second tunnel, which is due to open in 2029.
Work on the new tunnel has been suspended.
Last month the existing tunnel was closed briefly after slabs fell from the ceiling.
Experts told the SonntagsZeitung newspaper it may be necessary to increase the distance between the tunnels which would delay the planned opening.
Several injured in random knife attack
A man attacked several people with a knife yesterday afternoon in Zofingen in canton Aargau.
Push for Geneva to host song contest
Pressure is building to get canton Geneva to officially back the hosting of next year’s Eurovision Song Contest.
Govt says 'no' to song cash
As the potential cities vie for the right to host next years Eurovision Song Contest, the federal government have made it very clear – there will be no government money.
Unusual snowfalls on high passes
Despite being mid-May, the higher ground is getting a massive amount of snow.
Possible charge for Lauterbrunnen
The picturesque village of Lauterbrunnen in the Bernese Oberland is considering following the lead of Venice - and bringing in a daily charge for visitors.
Accident caused major disruption - man seriousy injured
Geneva rush hour traffic was severely disrupted yesterday afternoon after a 19-year-old scooter rider was hit by a tram in Rive.
