BOSTON -- Sen. John Kerry's daughter, Alexandra Forbes Kerry, was arrested early Thursday on suspicion of driving under the influence, according to TMZ.com.

Law enforcement officials told the Web site that the arrest happened in Hollywood at 12:40 a.m.

Forbes Kerry, a 36-year-old film producer and director, was pulled over for a traffic stop, then arrested and booked at LAPD's Hollywood station and was released at 5:25 a.m., the Web site reported.

Police conducted a field sobriety test and it appeared she was under the influence of an intoxicant and placed under arrest, the Web site reported.

Forbes Kerry refused to take a preliminarily alcohol screening test at the scene, but a formal blood alcohol test at the station showed a level of .06, the Web site reported. Under California law, the legal limit is .08, but a driver below that level can still be prosecuted if the vehicle was being operated unsafely.

“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. Senator Kerry supports his daughter and will have no further comment on a private matter,” Kerry spokeswoman Jodi Seth said in a written statement.

Forbes Kerry is the senator's eldest daughter. Her mother, Julia Thorne, was married to Kerry from 1970 until their divorce in 1988. Both Forbes Kerry and her younger sister, Vanessa, were active in their father's 2004 presidential campaign.

Forbes Kerry has produced several documentaries and has had some small acting roles.