It's all over for Jude Law and Sienna Miller

Actor Jude Law in a scene from the motion picture 'Sky Captain'.

Sienna Miller and Jude Law have ended their engagement, months after he apologised for an affair with his children's nanny, according to a report by the Associated Press (AP) today.

A London-based representative for Miller, who became engaged to her Alfie co-star last Christmas, today refused comment on the story, which was posted on People magazine's website. The magazine did not name any sources.

Public Eye, the London firm that represents Miller, said it would not comment on her personal life.

Law's publicist, Simon Halls, also told AP today he wouldn't talk about the report.

"We don't comment on our clients' personal lives," Halls reportedly told the Associated Press.

British media reported this week that Miller, 23, had been seeing Law's friend Daniel Craig while Law was fighting to win her back. Miller and Craig appeared together in the 2004 film Layer Cake.

AP says Miller was quoted last month as saying, "There's nothing going on between me and Daniel. We were in a movie together two years ago."

Law, 32, earned Oscar nominations for his roles in The Talented Mr Ripley and Cold Mountain. His screen credits also include Sky Captain and the World of Tomorrow, Closer and The Aviator.

Craig's credits include the 2005 thriller The Jacket, starring Adrien Brody and Keira Knightley.