Kiefer Sutherland 'headbutts man' over Brooke Shields - report

Kiefer Sutherland allegedly head-butted clothing designer Jack McCollough. Photo / AP

Actor

Kiefer Sutherland

is being investigated by police over allegations he head-butted a fashion designer in a dispute over

Brooke Shields

.

According to multiple published reports, Sutherland, who plays heroic

Jack Bauer

in hit TV drama

24

, allegedly head-butted designer

Jack McCollough

at an after-party for the Costume Institute Of The Metropolitan Museum Gala in New York on Monday night.

Witnesses say Sutherland, 42, was deep in conversation with glamazon Shields at the after-party when McCollough accidentally bumped into her.

New York's

Daily News

reports that McCollough - a friend of Shields's - cut between Sutherland and Shields at a SoHo nightspot, and that the star allegedly took offence, went ape and head-butted the designer.

"Sutherland was really drunk," a witness tells the

Post

. They started arguing and then he just head-butted him."

A spy at the showbiz bash also tells

nypost.com

that Sutherland "was running around wearing a giant feather boa and acting totally crazy. He was dancing feverishly and twirling people around all over the place. He seemed to be quite intoxicated." Our kind of guy.

The luminaries were all out on the razz following the Met's Costume Institute Gala, which attracted a slew of celebs, including

Madonna

,

Anne Hathaway

,

Kate Moss

,

Rihanna

and

Kirsten Dunst

.

Initial reports claimed McCollough, co-founder of the white-hot Proenza Schouler label, had sustained a broken nose in the alleged attack, but he has since revealed all he got was a nasty

cut on his hooter

McCullough is quoted as telling cops that Sutherland "was drunk and obnoxious" and "pulled this stupid wrestling move like a teenager," before allegedly hitting him.

Reps for Shields tell TMZ.com that "nothing happened to her," adding "Jack did nothing inappropriate. It's not clear what caused Kiefer to do what he did."

Asked if McCullough touched Shields, the rep responded: "We don't know."

Sutherland and Shields are currently being probed by police who are attempting to unravel what exactly happened.

"All we can say at this point is that [McCollough] was the victim of a vicious, violent, unprovoked assault and that the matter is in the hands of the authorities," a rep for the designer told People.com

Oh Kiefer...

This latest incident could spell real trouble for Sutherland. The actor is still on probation in Los Angeles for a DUI charge, a condition of which says he must stay on the correct side of the law.

Come to think of it, this public 'fracas' made us look back fondly at the time Sutherland was filmed knocking seven bells out of a Christmas tree in a hotel a couple of years ago:

Video: Sutherland, tree hugger

Reps for Sutherland have kept schtum.

BBB

Pictured: Kiefer Sutherland. Photo / AP

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