The Duke of Sussex's memoir will be published on 10 January, his publisher Penguin Random House has said.

The book by Prince Harry will be titled Spare and will include his full account behind his decision to give up royal duties and move to the US.

Penguin Random House said: "As Diana, Princess of Wales, was laid to rest, billions wondered what the princes must be thinking and feeling - and how their lives would play out... For Harry, this is his story at last."

Buckingham Palace said it would not comment on the book announcement.

Some of the proceeds from the book go to the charities Sentebale and WellChild.