First world war training tunnels and trenches discovered in Wiltshire

Live grenades, graffiti, Australian toffees and a 1930s red sports car among finds at site being cleared for housing

A vast battlefield landscape of tunnels and trenches dug to train troops for the first world war has been discovered on army land being cleared for housing.

Archaeologists who worked on the site at Larkhill, in Wiltshire, said the century-old complex was a valuable discovery - although it posed hazards.