Anna Nicole attacks ex in angry message

Anna Nicole Smith has attacked ex-boyfriend Larry Birkhead in a furious internet message as the photojournalist battles to gain custody of the baby he claims is his.

Birkhead launched legal proceeding against the busty model/actress last year, after going public with claims he was the biological father of Smith's baby daughter, Dannielynn.

And, as Smith, who disputes her ex's claims, fought to block a court-imposed paternity test yesterday, she took time out to send Birkhead a furious AOL Instant Message.

In the nasty exchange, obtained by news website TMZ.com, Anna Nicole ranted: "Y'all are sick."

And when Birkhead offered: "Show up for the test with the baby… Everybody just want u to do right thing (sic)," the angry new mum responds: "Don't think so… In your dreams."

As WENN went to press, Smith's lawyers were trying to block the paternity test, which was due to take place yesterday.

According to TMZ.com, the judge in the case has not issued a definitive ruling on Smith's motion and so far the test has not taken place.