Grenades in the French Alps: Protesters clash with police over world's longest tunnel – video

Protesters clashed with police in the Maurienne Valley, south east France on Saturday, as they demonstrated against a tunnel being built through the base of the Alpine range that separates France and Italy. The protesters were attempting to reach a site where drilling has already begun on what will be the world's longest tunnel, but were blocked by police. 

The protests were led by Les Soulèvements de la Terre (Earth Uprising) - an umbrella group of several different environmental activist associations across France. On June 21 the French government dissolved the collective claiming their actions were violent and led to material damage. Lawyers for Les Soulèvements de la Terre immediately announced their intention to file an appeal