Police in the UK are examining new information which alleges that Princess Diana and Dodi Fayed were murdered by a member of the British military.
Scotland Yard said it is “scoping” the information and “assessing its relevance and credibility”.
The claims were passed to the Metropolitan Police by the Royal Military Police (RMP), which was told of them by the former parents-in-law of a former soldier based on information that the ex-soldier had talked about in the past, according to a military source.
A letter given to the RMP is said to allege that the SAS was “behind Princess Diana’s death”, according to the Sunday People, and to also refer to the princess’s “secret diary”, in which she allegedly made certain allegations.
The People said that the letter claimed the soldier was the special forces member who was the former housemate of Sergeant Danny Nightingale, who was found guilty of illegally possessing a gun and ammunition.
A statement issued by Scotland Yard said: “The Metropolitan Police Service is scoping information that has recently been received in relation to the deaths and assessing its relevance and credibility.
“The assessment will be carried out by officers from the specialist crime and operations command. This is not a re-investigation and does not come under Operation Paget.”
Police said they are not prepared to discuss the matter further, while a royal spokeswoman said there will be no comment on the matter from the Duke of Cambridge or Prince Harry, or from Clarence House.
Diana, Dodi and chauffeur Henri Paul died after their Mercedes crashed in a Paris tunnel after it left the Ritz Hotel on the morning of August 31, 1997.
Diana, mother of William and Harry, was 36 at the time of her death, while Dodi was 42.
The hearing into their deaths lasted more than 90 days with evidence from around 250 witnesses.
The inquests concluded on April 7, 2008, with a jury returning a verdict that the ”People’s Princess” and her boyfriend were unlawfully killed.
After the hearing the Metropolitan Police said it had spent £8 million on services arising from the inquest and the Operation Paget investigation from 2004 to 2006.
That money includes the cost of the legal team which represented the force’s commissioner at the inquest, police protection for the inquest jury and paying for the Paget inquiry, reported to have cost £3.6 million.
Former Met Police Commissioner Lord Stevens’s Paget investigation was launched in 2004 at the request of Michael Burgess, the Royal Coroner, who was then overseeing the future Diana inquest.
The former top policeman published his report in December 2006, rejecting the murder claims voiced by some, including Dodi’s father Mohamed al Fayed.
Lord Stevens’s investigation found that Diana was not murdered by British spies nor by the Duke of Edinburgh and she was not pregnant nor engaged to boyfriend Dodi.
Operation Paget concluded, just like the French investigation in 1999, that Mr Paul was drunk and driving at excessive speed.
The investigation dismissed the endless conspiracy theories sparked by the fatal accident.
Mr Paul had an alcohol level of around 1.74 grams per litre at the time of the crash – about twice the British drink-drive limit.
The black S280 Mercedes was being driven through the Pont de l’Alma tunnel in Paris at around 61mph to 63mph – twice the speed limit for that section of road.
Lord Stevens said allegations that Diana was murdered were ”unfounded” and that he found nothing to justify further inquiries with members of the Royal Family.
The Ministry of Defence said it was not commenting on the matter.
A spokesman for Mr al Fayed said he had no comment to make, but said he will be “interested in seeing the outcome”, adding that he trusts the Met will investigate the information “with vigour”.