nicole richie was arrested for DUI this monring!

TMZ has learned that Nicole Richie was arrested for DUI early Monday morning. She was booked at 4:50 AM today and was released 45 minutes ago. The booking sheet reveals Richie is 5'1" and 85 lbs. A rep for Richie could not immediately be reached for comment. We're told her SUV was spotted by two motorists going the wrong way on the 134 Freeway in Burbank. The drivers called 911. When the CHP responded, Richie was stopped in the carpool lane and was alone in the vehicle. When cops approached the vehicle, Richie was on her cellphone. Law enforcement officers tell TMZ Nicole Richie admitted she had taken Vicodin and smoked pot. A preliminary alcohol screening device revealed that Nicole was not under the influence of alcohol.

Re: nicole richie was arrested for DUI this monring!

CNN-A CHP officer, Mark Garrett, told the Los Angeles Times that Richie admitted smoking marijuana and taking Vicodin before her arrest.