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LOS ANGELES (AP) -- Authorities say reality television star Stephanie Pratt has been arrested on suspicion of drunken driving.

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Los Angeles police say the 23-year-old Pratt was arrested early Sunday outside a party in Hollywood. Pratt is featured on the MTV show "The Hills" along with her brother, Spencer Pratt.

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She was booked at Van Nuys jail on suspicion of driving under the influence and was released a few hours later after posting $5,000 bail.

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"The Hills" chronicles the personal lives of a number of young people living in Los Angeles.

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