Samantha Ronson Arrested for DUI at 10:30 in the Morning

Mon Aug 1, 2011 4:17pm EDT

Lindsay Lohan might be teetering her way back toward sobriety -- but her ex-girlfriend, Samantha Ronson, is apparently off the wagon.

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TMZ.com reports that Ronson was arrested for DUI on Monday, following a deejaying gig at Lavo nightclub in Las Vegas.

Ronson, 33, was pulled over for speeding in her black Porsche outside of Baker, Calif. at approximately 10:30 a.m.; after performing poorly on a field-sobriety test and refusing a Breathalyzer test, Ronson was hauled into the Baker Sheriff's Department substation, where a test determined that her blood-alcohol level was over the legal limit.

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Ronson, who was reportedly cooperative during the arrest, was released later in the day.

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