London's Metropolitan Police did not elaborate on the information, or its source, but Britain's Sky news television station said it had come from the parents-in-law of a former soldier and had been passed on by the Royal Military Police.
A royal spokeswoman said there would be no comment.
The Metropolitan Police said in a statement that it was assessing the "relevance and credibility" of information into the deaths that it had recently received.
Stevens concluded there was no evidence of murder and said that driver Paul had been drunk and going too fast. A 2008 inquest in London returned a verdict of unlawful killing and said Paul and the photographers were to blame for the deaths.
Investigators in France have also dismissed allegations of murder and in 2008Mohammed al Fayed announced he was abandoning his 10-year campaign to prove the couple were killed, for the sake of Diana's sons William and Harry.
He said he had reservations about the outcome of the inquest but had had enough: "I am leaving the rest for God to get my revenge."
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