The Mont Blanc Tunnel will be completely closed to traffic from September 1st to December 12th.
Officials say the shutdown is unavoidable, as detection systems, fans and other equipment must be dismantled, making traffic impossible.
The closure was agreed by French and Italian authorities for safety reasons.
During the 15-week period, heavy goods vehicles will be diverted to the Fréjus Tunnel, while cars will need to use alternative Alpine routes such as the Grand St. Bernard Pass.
Heat to stay for now
The heatwave alert has been extended until Thursday, with temperatures set to climb as high as 37 degrees in some areas.
Growing anger over World Cup red card
The Swiss team's manager, Murat Yakin has called Breel Embolo's red card 'unacceptable', as anger builds over the refereeing of Switzerland's World Cup quarter-final loss to Argentina.
Fire damages trees in the Jardin Anglais
A fire tore through part of Geneva's Jardin Anglais on Saturday morning, gutting several trees and damaging a lakeside building used by the Mouettes ferry service.
Cows sweltering in the heat
The heat is now hitting the country's dairy herds, with cows producing less milk as they burn extra energy to stay cool.
Lake Geneva nudists fight for their lake section
A hidden stretch of Lake Geneva shoreline has become the focus of a long-running battle over public nudity.
Holiday makers seek more than the sun
Nearly half of Swiss holidaymakers are choosing to learn a new skill on their summer break rather than simply lie on a beach.
