Prince Harry claims he asked to be driven at speed through the Paris tunnel where Princess Diana was killed

A Prince Harry interview promoting his upcoming memoir Spare has dealt with the impact the death of his mother Diana had on him.

Speaking to friend and journalist Tom Bradby on ITV in the UK, the Duke of Sussex said he'd seen pictures of his mother's car crash in the Paris tunnel where she died.

Saying "it still hurts" when he thought about how photographers had taken pictures rather than helping her, the Prince also claimed as an adult he'd asked to be driven through the Alma tunnel where she died.

He also said he'd asked to be driven through the tunnel at the same speed as his mother did when her car crashed in 1997.

Harry also said that unbeknownst to him, Prince William had also done the same and requested a similar journey through the tunnel.

"The idea that she'd been taken away and that William and I were now motherless, was something that I just couldn't comprehend," Harry told ITV.

"Like, I'd heard people talking about there being photographs. By this point, I was starting to understand the involvement of the paparazzi chasing her.

"And to this day, I will remain eternally grateful for Jamie (Harry's private secretary) for showing me what he believed I needed to see, but removing the stuff that he knew I didn't need to see."

However, Harry also told Bradby he did see the photos of "the back of her blond hair slumped on the back of the seat".

Prince Harry and Anderson Cooper
Prince Harry's first US sit-down interview will screen exclusively in New Zealand on Three. Photo credit: Supplied

The ITV interview is the first of several timed to promote his upcoming autobiography Spare, which twill be released on Tuesday, January 10.

The Duke of Sussex will also be interviewed by 60 Minutes' Anderson Cooper in his highly-anticipated first US television one-on-one, which in New Zealand will air exclusively on Monday, January 9 at 7pm on Three and ThreeNow.