Officials have detected a surge in earthquake activity at a massive US volcano, sparking fears of an imminent eruption.

Video on social media and Swiss TV showed the mudslide near Blatten, in the southern Lötschental valley, with homes and buildings partially submerged under a mass of brownish sludge.

Video on social media and Swiss TV showed the mudslide near Blatten, in the southern Lötschental valley, with homes and ...