The Duke of Cambridge meets mental health marathon runners

The Duke of Cambridge has revealed the shock of his mother's death is still with him, twenty years after she was killed in a car crash in Paris.

Prince William was speaking in a BBC documentary which follows a group of people affected by mental health problems, who are training to run the London Marathon on Sunday.

The two-part series, Mind Over Marathon, starts on BBC One at 21:00 BST on Thursday 20 April, as part of a Minds Matter series of programming about mental health issues.