Prince Harry says one of the hardest things to come to terms with over the death of his mother, Princess Diana, is that the people who chased her into the tunnel in Paris took photos of her while she was still dying on the back seat of the car.
In an emotional interview in a BBC documentary, he and Prince William open up about their mother's death 20 years ago.
Princess Diana died as a result of injuries sustained in a car crash in a road tunnel in Paris on August 31 1997 in which Dodi Fayed and Henri Paul, the driver of the Mercedes also died.
The documentary, Diana, 7 Days will be broadcast in the UK on Sunday.
"I think one of the hardest things to come to terms with is the fact that the people who chased her into the tunnel were the same people that were taking photographs of her while she was still dying on the back seat of the car," Prince Harry says in the interview.
"She'd had quite a severe head injury but she was very much still alive on the back seat."
He said instead of helping, some people were taking photographs of Diana on the back seat.
"And then those photographs made their way back to newsdesks in this country."
Although the media blamed the paparazzi following the car, an 18-month French judicial investigation found that the crash was caused by Paul, who lost control of the car at high speed while drunk.
The documentary also reveals that Prince Harry, then 12, felt so traumatised by his mother’s death that he vowed never to cry in public for the rest of his life, but almost broke down when Elton John sang at her funeral, Britain's Daily Mail reports.
Prince William says he was "disorientated, dizzy… and very confused" after being told of his mother's death.
He says: "I remember just feeling completely numb. And you keep asking yourself 'why me?' all the time. 'What have I done?'"