Police in the U.K. have ruled out reopening an investigation into the death of Diana, Princess Of Wales after dismissing allegations suggesting special forces soldiers were involved in her fatal car crash.

The British royal was killed in a road traffic accident in Paris, France in 1997 along with her boyfriend, Dodi Fayed, and their chauffeur, Henri Paul, and the case was back in the news over the summer (13) after police received a tip-off.

The new information suggested members of Britain's Special Air Service (Sas) were involved in circumstances leading to the accident.

Officers spent several months looking into the claim, but Metropolitan Police Assistant Commissioner Mark Rowley has now confirmed they will not be pursuing the case any further.

In a statement obtained by Sky News, he says, "Every reasonable line of enquiry was objectively pursued in order to fully evaluate any potential evidence... Whilst there is a possibility that the alleged comments in relation to the Sas' involvement in the death may have been made, there is no credible or relevant evidence to support a theory that such claims had any basis in fact.

"Having reviewed the exercise and its findings, I am satisfied that there is no evidential basis upon which therefore to re-open any criminal homicide investigation or refer the matter back to the coroner."

An inquest in 2008 returned a verdict of unlawful killing, attributed in part to the negligence of the car's driver.