More than 70 business leaders have signed a letter to the Sunday Times calling for a public vote on the UK's Brexit deal.

The chief executive of Waterstones and former Sainsbury's boss Justin King are among those saying a "destructive hard Brexit" will damage the UK economy.

A group called Business for a People's Vote will launch on Thursday.

A Downing Street source told the BBC the Prime Minister was clear that there would be no new referendum.

The letter was coordinated by The People's Vote campaign, which wants a ballot on whether to accept the terms of the UK's departure from the European Union.

Richard Reed, co-founder of Innocent Drinks, Lord Myners, the former chairman of Marks and Spencer and Martha Lane Fox, the founder of Lastminute.com, also signed the letter.

Prime Minister Theresa May has said asking the public to vote again would be a betrayal of the public's trust.

The Downing Street source told the BBC: "The Prime Minister has been clear - no second referendum.

"We had a people's vote, it was in June 2016." (BBC)