Paris Hilton's younger brother, Barron Hilton, suffered a brutal attack on Friday night in a Miami mansion while attending a party (Dec 6th).

The 24 year-old heir claims the person responsible for the beat down was Lindsey Lohan.

TMZ reports, Baron was talking about the 'Mean Girls' actress but didn't have many nice words to say, not long after he was badly beaten.

The gossip site also claims Lohan screamed, "'You talk sh*t about me to my boyfriend, this is what you get," before a male friend of hers proceeded to punch the Hilton sibling, while she was laughing and encouraging him.

Lindsey had denied even been present when the attack occurred but footage has since emerged of her and Barron confronting each other, while Lohan was entering a black SUV.

"I saw nothing," shouted the 27 year-old. "'I'm harassing you?...Look at him! F**king c***"

The attack was so brutal, Hilton had seek medical treatment at the University of Miami due to the injuries he sustained.

Sources told TMZ the party, which was at a mansion Lohan was staying, saw many attendees indulge in alcohol and cocaine, but Lindsey didn't partake in any of it.

The local authorities were called to the scene and interviewed Barron, he couldn't identify his attacker but reportedly told the police Lohan was behind the whole thing.

TMZ spoke to Michael Lohan, he insists Lindsay was long gone before the fight even happened and had nothing to do with it.

So how does he explain the footage of Lohan and Hilton exchanging words?

Barron posted a photo of his injuries on his Instagram page which shows several cuts on the heir's face and nose.