Credit: Denise Truscello/

Samantha Ronson was arrested Monday morning at 10:30 a.m. outside of Baker, Calif. for driving under the influence, Us Weekly confirms.

According to a law enforcement officer, the 33-year-old DJ was driving her black Porsche Targa 89 m.p.h. in a 70 m.p.h. zone. "Speed was why she was stopped, but she was arrested on [two] misdemeanors of driving under the influence," an officer told Us. "When she was stopped, she showed signs of being impaired. [The officer] gave her balance tests and she showed signs of alcohol intoxication."

Ronson, who famously dated Lindsay Lohan off and on from 2008 to 2009, was alone at the time of the arrest. "She was friendly and talkative," an officer said. "She was cooperative throughout the whole ordeal."

Ronson "admitted she had consumed alcohol early [that] morning or late last night, and was on her way home [from Las Vegas]" according to an officer. "She went to bed and got up this morning and was on her way home."

She was released from the San Bernadino Sheriff's office at 5:30 p.m.