Kiefer Sutherland is in serious trouble with the law again -- he's going to be charged with misdemeanor assault after allegedly headbutting a designer at a New York fashion event.
Police launched an investigation after the 24 star was accused of assaulting Jack McCollough at a Met Costume Institute Gala after party on Tuesday night.
Sutherland reportedly flew into a rage with McCollough after he bumped into actress Brooke Shields at SoHo nightspot SubMercer.
The actor is said to have confronted the catwalk mogul and told him to apologize to Shields. He is then alleged to have headbutted McCollough in the face, injuring his nose.
And now the actor has been told to show up at a New York police station and get a desk appearance ticket for an upcoming arraignment date.
Sutherland is currently under a probation order in Los Angeles relating to his 2007 conviction for driving under the influence.
He spent 48 days in jail but could be sent back to prison if he is found to have violated the terms of his release by fighting with McCollough.
A representative from the L.A. City Attorney's office tells TMZ.com they will contact the New York Police Department to get details and then decide if they will try to revoke Sutherland's probation.
(c) 2009 WORLD ENTERTAINMENT NEWS NETWORK LTD. All global rights reserved. No unauthorized copying or re-distributing permitted.
MORE NEWS: Aniston/Pitt Meeting Dismissed by Reps