Princess Diana was under FBI investigation for 'bomb threat'

Princess Diana was killed alongside her boyfriend Dodi Al-Fayed in a car crash in Paris in 1997, has been investigated by the FBI after an officer was told that someone had posted bomb "as a wedding present, classified documents reveal.

The investigation was initiated when a woman phoned from Annapolis, Maryland, and said she had overheard a conversation the man had sent a bomb to the Prince and Princess of Wales before their marriage in July 1981, according to FBI documents.

The investigation was subsequently dropped when the man who made ​​the alleged threat said he had spoken "sarcastic", "The Daily Telegraph 'reported.

The files are among thousands released on a new FBI website called "the Bank" which contains files dating back several decades have been scanned from paper to digital format and filed in the subjects of "unexplained phenomenon" in "Foreign intelligence-cons. "