A multi-millionaire hedge fund boss and his wife have lost their Supreme Court battle to ban people from wild camping on Dartmoor.

Five judges unanimously dismissed a legal challenge brought forward by wealthy landowners, Alexander and Diana Darwall, who claimed some campers had been a nuisance to their livestock and the environment.

Mr and Mrs Darwall - a ceramics expert who used to work at the Sotheby's auction house - keep cattle on Stall Moor, which forms part of their more than 3,450-acre Blachford estate in the southern part of the national park.

The landowners had challenged a Court of Appeal ruling at the UK's highest court, which said the law allows the public to camp on the Dartmoor Commons, provided bylaws are followed.

The case concerned the interpretation of the Dartmoor Commons Act 1985, which says 'the public shall have the right of access to the commons on foot and on horseback for the purpose of open-air recreation' on the commons.