Clash over new high-speed rail tunnel in Italian Alps

Police have clashed with demonstrators in the Italian Alps over the construction of a new high-speed rail link with France.

Tunnelling is set to start for a line from Turin to Lyon, which is expected to cut the travel time by nearly half.

Local residents built barricades to prevent heavy machinery from starting work in the picturesque Val di Susa, in northern Italy.

Police used fire hoses and tear gas to disperse them.