Kate Moss warns Sienna Miller she'll "have an enemy for life"

British supermodel Kate Moss has warned actress Sienna Miller she'll "have an enemy for life", if she hurts her longterm pal, actor Rhys Ifans.

According to reports, Kate, 33, went head-to-hed with Sienna over her relationship with Rhys - at soap star Davinia Taylor's 30th birthday bash at The Colour Rooms, in east London, on Saturday.

Kate was overheard saying: "If you hurt Rhys, you'll have made an enemy for life. Treat him right and we'll leave you alone. But don't hurt him because we love him - and we always stick together."

According to reports, the pair's showdown was the talk of the party on Saturday night - after Kate told one of her pals the full story before adding: "I hope she gets the message."

A source at the party told Britain's Daily Mirror newspaper: "Sienna was shocked by what Kate had said. She turned on her heel and took to the dancefloor. She just couldn't believe it."

However, Sienna's spokesperson insisted that there is no problem between the girls. Kate, whose publicist declined to comment on the row, kept partying until Sunday evening.