Video: Rescue crews search for missing after Mont Blanc avalanche The massive slide of snow happened around 5am this morning as early morning climbers made their way up Mount Maudit, which translates as "cursed peak," in the Mont Blanc range. Most of the climbers were roped together on what is considered to be one of the most dangerous ascents in Europe. The three Britons killed may include one or more guides, a local mountaineering leader said. Christian Trommsdorff, from the French Mountain Guides Association, said: "I am not sure that there are still other British people unaccounted for." Two further Britons and two Spaniards were reported to be still missing