The Valais local government said the damage is "considerable," with one person missing and homes under debris.

A huge mass of rock and ice from a glacier has thundered down a Swiss Alpine mountainside. Authorities say it covered with mud or destroyed about 90% of a village that was evacuated earlier this month.

In Blatten, Switzerland, the aftermath of a glacier avalanche is creating increasingly difficult conditions. Water, blocked by the resulting landslide, threatens to flood additional towns. Key information The glacier avalanche destroyed part of the village of Blatten in Switzerland.

A glacier in Switzerland's Lötschental valley broke off, causing a massive mudslide and covering 90% of the village of Blatten. Authorities had evacuated the area earlier due to the glacier's movement.