The disturbing Twitpic is a Polaroid from a photo session with a celeb photographer, she says

By Eunice Oh
Updated April 29, 2010 02:05 PM
Credit: Coutesy Lindsay Lohan

Hard to believe, but Lindsay Lohan‘s life just got a bit more controversial.

Less than a week after her father brought cops to her house and she was named a suspect in the theft of a Rolex watch, Lohan had the Internet buzzing after posting a photo of herself pointing a gun at her mouth on her Twitter page.

Lohan, 23, wearing a black dress and placing the gun on her lips, says the provocative photo was part of a shoot she did with celeb photographer Tyler Shields.

RELATED:Dina Lohan: Lindsay Is Not a Bad Influence on Her Sister
This isn’t the first time Lohan has been caught with a weapon. Back in 2007, photos of the starlet surfaced on the Internet showing her holding a knife to Vanessa Minnillo‘s neck and also pointing it into her own mouth.

Meet Sandra Bullock’s baby! For the whole story – including photos of her son Louis, an emotional interview about her breakup with Jesse James and her life as a new mom – pick up the new issue of PEOPLE, on newsstands Friday