Officials said the information suggests Diana and her lover, Dodi al Fayed, were killed by a British military member, Sky News reported. They said the Metropolitan Police's Specialist Crime and Operations Command will review the information.
Conspiracy theories about the crash have circulated for years, including one that suggested Prince Philip, Diana's former father-in-law, orchestrated her death.
A jury in 2008 blamed the crash on "grossly negligent driving" by Henri Paul, who was driving Diana and Fayed in a Mercedes and was also killed in the crash, and by cars pursuing them as photographers tried to get close.
Citing a source it did not identify, Sky News said the new information came to police from the parents of a former soldier's wife.