Campell 'spat in guard's face'

Fiery supermodel Naomi Campbell has been embroiled in another assault wrangle after allegations she spat in the face of a security guard at a U2 concert in New York late last year.

The 35-year-old was a guest of her ex-fiance, U2 bassist Adam Clayton at the Madison Square Garden gig when she also allegedly verbally attacked the bouncer, who asked her to get off a barrier separating the band and audience.

A police witness tells the New York Daily News: "Campbell told him he was a f**king a**hole and spat in his face."

Another source claims Campbell screamed: "Don't you know who I am!".

The source adds: "She acted like the spoiled prima donna you read about."

No police report was ever filed.

The troubled catwalk queen already faces a possible seven years in jail for allegedly throwing a mobile phone at her assistant Ana Scolavino's head last week. She denies the charge.