An archaeological dig, which will last for several months, is due to start at a World War 2 commando training site in the Highlands this weekend.

Achnacarry Castle, the ancestral home of the chiefs of Clan Cameron, was crucial to the allied campaign against the Axis powers during WW2.

The castle, about 15 miles north east of Fort William, was used to train elite commandos from Britain and the US as well as France, the Netherlands, Norway, Czechoslovakia, Poland and Belgium from 1942 to 1945.

Earlier excavations have uncovered live ammunition, including bullets for captured German weapons.