THE boss of the National Lottery is to retire later this year after 14 years in which it has raised more than £21 billion for good causes.

During her time as chief executive of Camelot, which runs the lottery, Dianne Thompson won two licence competitions to keep hold of the business and secured a four-year extension to the current licence, which ends in 2023.

There were record sales of £7bn in 2012/13 - compared with £5bn in 2000/1 - while her period in charge has created more than 3500 lottery millionaires, with £3.7bn paid out in prize money last year.

Her departure in October will see her role spilt in two, with managing director of its UK business Andy Duncan becoming chief executive of Camelot UK Lotteries. Nigel Railton, the chief financial officer and strategy director, will become chief executive of Camelot global services.

One of Mr Duncan's tasks will be to revamp Camelot's online site with new games.

Ms Thompson, 63, said: "I always said running Camelot has been my dream job, and I will look back over the last 14 years with great fondness and pride."