Millions of documents stored at the World War II code-breaking centre, Bletchley Park, are set to be digitised and made available online.

Electronics company Hewlett-Packard has donated a number of scanners to the centre in Milton Keynes so volunteers can begin the ground-breaking task.

Many of the records at the once-secret centre have not been touched for years.

During the war, it was home to more than 10,000 men and women who decoded encrypted German messages.