Amanda Bynes was arrested for driving under the influence (DUI).
The 28-year-old actress, who sought treatment in rehab last year, was detained at 3am in San Fernando Valley after police discovered she was under the influence of a controlled substance while driving.
The She's the Man star was taken to the Van Nuys station in California before being released at 12:44pm on $15,000 bail, according to TMZ.com.
Amanda is set to appear in court on October 23.
Meanwhile, the Hairspray star was charged with DUI in April 2012 after she hit a police car in West Hollywood, but the charge was dropped in February this year and she was sentenced to three years of probation for reckless driving as part of a plea deal.