Alexandra Kerry, 36, who works as a film director/producer, was arrested in Los Angeles early Thursday morning and released at 5:25 a.m. after posting $5,000 bail, police records show.
"Alexandra Kerry was pulled over for an expired registration and was released after the results of a breathalyzer test at the police station were under the legal limit," says Jodi Seth, spokeswoman for the Massachusetts Democrat. "Senator Kerry supports his daughter and will have no further comment on a private matter."
Police Sgt. Enrique Mendoza tells PEOPLE that Alexandra Kerry was stopped by officers "for a DUI investigation" and brought to the Hollywood station, where "she identified herself as Sen. Kerry's daughter."
A court date is set for Dec. 10.
Reporting by KEN LEE