Water trapped behind glacial debris that buried the village of Blatten and blocked a river has sparked warnings of further evacuations.

Videos on social media and Swiss TV showed the mudslide near Blatten, in the southern Ltschental valley. Houses and buildings were partially submerged under the brownish mud mass. Local police said a 64-year-old man was reported missing. Search and rescue operations involving drones with thermal cameras were ongoing.

The landslide sent plumes of dust skyward and coated with mud nearly all of an Alpine village that authorities had evacuated earlier this month as a precaution.