Nicole Richie was arrested early Monday for investigation of driving under the influence of alcohol, authorities said. California Highway Patrol officers took Richie, 25, into custody without incident after she failed a field sobriety test, CHP Officer Todd Workman said. Her black Mercedes sport utility vehicle was stopped in the car pool lane of State Highway 134 when officers arrived. Authorities said they received 911 calls about a car going the wrong way on the freeway and the car matched the description of Richie's.