Heavy snow blocks Alpine resorts in Switzerland and France

The Swiss ski resort of Zermatt was cut off and tourists and residents were told to stay indoors in the French resort of Tignes because of heavy snow in the Alps on Thursday.

Tignes Mayor Serge Revial said there was a high risk of avalanches and "we had to make a decision to protect people", after more than a metre of snow was dumped over the town.

Although snow is not uncommon in the Alps in April, the disruption left thousands of homes in the Savoie region of eastern France without power.

In neighbouring Switzerland, the Simplon Pass into Italy and the Great St Bernard Tunnel were closed to traffic, while two cantons were badly affected.

In Valais and Bernese Oberland, tourists heading for ski holidays were hit by the disruption.

Road and rail routes were cut off into the resort of Zermatt in the southern canton of Valais; power was cut throughout Thursday and mobile phone networks were badly disrupted.

Queues built up outside the only supermarket open in the town, according to Swiss media.

The Alertswiss app warned of the risk of avalanches and falling trees in Valais as well as major disruption to transport. Schools were closed for the day in the city of Sion.