Heavy snowfall in the Swiss Alps has caused significant disruptions to road traffic since Sunday morning.

The Gotthard Tunnel was temporarily closed for snow clearing, leading to a seven-kilometer traffic jam between Altdorf and Göschenen.

Authorities also reported issues on the San-Bernardino route and closures on the A9 for certain vehicles.

Many foreign cars with summer tires struggled in the conditions, further complicating the situation.

The Swiss government has issued warnings for avalanche risks, with levels reaching 3 and 4 in some areas.

Meteorologists predict up to 125 centimeters of snow in central Alpine regions by Christmas Eve, with strong winds adding to the challenges.

Travelers are advised to exercise caution and plan alternative routes.