Author Salman Rushdie has threatened to sue a publisher over a book by a former bodyguard that he said portrays him as cheap, nasty and arrogant and depicts his police guards as "losers" who drank on duty.

Rushdie, 61, said Saturday from London that the book, "On Her Majesty's Service," contained "a bunch of lies." The author's lawyer said he had written to the publisher demanding that the as-yet-unpublished memoir be withdrawn.

The book was co-written by Ron Evans, a former Metropolitan Police officer who was one of the team guarding Rushdie while he was under an Iranian-backed death threat for his 1988 novel "The Satanic Verses."