Prince Harry is "fearful" about bringing his wife Meghan Markle and their children to the U.K. due to the lack of police protection, a royal expert has said.

The Duke of Sussex continues to fight for police security for himself and his family during visits to the U.K. -- a right that was stripped away after he and the Duchess of Sussex stepped back from royal duties and moved to California in 2020.

In the latest episode of "The Royal Record" podcast, GB News royal correspondent Cameron Walker discussed the "main reason" why Prince Harry hasn't given up after losing his legal challenge for automatic protection back in February.

Walker noted that Prince Harry "doesn't feel his family is safe when they're in the U.K. because they do not have police protection officers with the Metropolitan Police with him."

Prince Harry and Meghan Markle
Prince Harry, Duke of Sussex, Meghan, Duchess of Sussex and their baby son Archie Mountbatten-Windsor meet Archbishop Desmond Tutu and his daughter Thandeka Tutu-Gxashe at the Desmond & Leah Tutu Legacy Foundation during their royal tour of South Africa on September 25, 2019 in Cape Town, South Africa.
(Photo : Toby Melville - Pool/Getty Images)

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"So perhaps that is the main reason why Prince Harry isn't bringing Meghan and Archie and Lilibet over to the U.K. because ... he would say he can't guarantee their safety," he added.

Walker suggested that the fatal car crash in Paris that resulted in Princess Diana's death on Aug. 31, 1997, is likely in the back of Prince Harry's mind "constantly" amid his ongoing legal battle.

Princess Diana did not have police protection with her on the night of the crash, and this fact may have "really affected" her youngest child, according to the royal correspondent.

"So I think you can see how from Prince Harry's perspective, he is really fearful about bringing his family over to the U.K.," Walker concluded.

Prince Harry and Meghan Markle
Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex walk together, ahead of Tonga's Princess Angelika, as they depart from Fua'amotu International Airport on October 26, 2018 in Fua'amotu, Tonga.
(Photo : Phil Noble - Pool/Getty Images)

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News broke in 2022 that Prince Harry challenged the U.K. government's decision to remove Harry's automatic right to U.K. police security and reject his bid to pay for police protection.

His lawyers told the court that the duke "does not feel safe" bringing his kids to his home country due to this decision, according to People.

Prince Harry's fears reportedly stemmed from his car being chased by photographers in London in July 2021.

He and Markle have not brought their kids Prince Archie and Princess Lilibet to the U.K. since June 2022 when they attended Queen Elizabeth II's Platinum Jubilee celebrations.

Prince Harry and Meghan Markle
Britain's Prince Harry, Duke of Sussex and Britain's Meghan, Duchess of Sussex return in a horse-drawn carriage after attending the Queen's Birthday Parade, 'Trooping the Colour' on Horseguards parade in London on June 9, 2018.
(Photo : NIKLAS HALLE'N/AFP via Getty Images)

The couple initially planned to bring their children along when they returned to the U.K. just before Queen Elizabeth died in September of that year.

However, they decided to leave Archie and Lilibet behind because of the lack of security, according to the ruling handed down by the U.K. High Court in February.

At the time, the judge upheld the British government's decision to remove Prince Harry's police protection.

Last month, Prince Harry received permission to appeal the decision.