Was Princess Diana murdered because she was pregnant with Dodi Al Fayed's child and on the verge of revealing embarrassing secrets about Prince Charles?

So says author Alan Power in his new book "The Princess Diana Conspiracy: The Evidence of Murder", which claims the British military carried out a "hit" on Diana on orders of a member of the royal family.

The explosive allegations are consistent with new reports that Scotland Yard is looking into new information about Diana's death.

On August 31, 1997, Diana, Fayed, and their driver, Henri Paul, were killed in a high-speed chase in a Paris tunnel. French investigators found the crash was accidental and that Paul had been driving intoxicated.

Now Scotland Yard is reviewing the evidence again after a British Special Air Service soldier's charge that the unit orchestrated the accident.

"There is no question about it – Princess Diana was murdered!" Power charged.

"There is also no question that Princess Diana was pregnant with Dodi Al Fayed's child, and that she planned to marry Fayed. If her two children with Prince Charles had gone away to live with Diana, the royal family would have no control over them," Power continued.

"Diana was also going to reveal a lot of stuff about Prince Charles' sex life – that he liked men, and had been having sex with his servants, both male and female," Power said.

Power contends the order to kill the Princess was given by Prince Philip, who was the only source of royal authority that MI6 would take orders from.

Prince Philip

Power is also concerned that the new evidence may be tampered with as part of a continuing cover-up.

On the night of Diana's death, he claims her killers rode ahead of her Mercedes in the now-infamous white Fiat Uno and flashed a blinding white strobe light into driver Paul's eyes, causing Diana's car to crash into the 13th pillar in the tunnel. Photographer James Andanson, the driver of the Fiat, was found dead nearly three years later, shot twice in the head.