nasty turn, with the former Beatle's estranged wife claiming he physically abused his first wife, Linda.
allegations against Sir Paul, including that he attacked her.
British newspapers are reporting that the 38-year-old Mills, a former model, has told friends she believes she has damning information about Paul and Linda's 29-year marriage.
Linda McCartney died of breast cancer in 1998.
The Sunday Mirror says Sir Paul, who was devoted to Linda and rarely spent a night away from her in their 29-year marriage, is aware of the latest claims.
"This is a step too far.
Next she'll be saying she's discovered a brand new colour. It's getting more ridiculous by the minute," the Sunday Mirror quoted a source close to Sir Paul.
but this is just outrageous.
It's nonsense - Paul and Linda had a fantastic marriage."
Sir Paul's official spokesman declined to comment.
to Linda what he did to her.
She says that staff of Paul's told her that Linda had also suffered abuse."
involving her mother and father, saying to her: "You're so full of bitterness, Stella.
your mother?
"
Documents which emerged last week alleged that, while in Los Angeles in the United States in 2002, McCartney "grabbed (Mills) by stem of a wine glass which cut her arm and made it bleed.
McCartney, 64, has said in a statement through his lawyers that the divorce courts.
