LOS ANGELES (AP) — Former actress Amanda Bynes was arrested early Sunday morning on suspicion of driving while under the influence of a drug, authorities said Monday.

Bynes, 28, was stopped by a California Highway Patrol officer after she stopped in the middle of an intersection in the Sherman Oaks neighborhood of Los Angeles around 4 a.m. on Sunday. The former child star was determined to be under the influence of an unidentified drug after being evaluated at a nearby police station, the CHP said in a statement.

The release states that Bynes, who has had a series of driving-related arrests, was cooperative but appeared disheveled when she was taken into custody.

Bynes was released hours later after posting $15,000 bail. A phone message left for her criminal defense attorney, Richard Hutton, was not immediately returned.

The one-time actress remains on probation for a 2012 case filed after she clipped a Los Angeles County sheriff's patrol car and was arrested for driving under the influence. Bynes pleaded no contest to alcohol-related reckless driving in February.

In June, a New York judge dismissed a criminal case filed after Bynes was accused of throwing a bong out of her 36th-floor apartment. The case was dismissed after Bynes complied with orders to receive counseling and stay out of trouble.

Last year, Bynes resolved a misdemeanor hit-and-run case in Los Angeles after entering a civil settlement with other drivers.

She received psychiatric treatment last year after authorities said she set a small fire in the driveway of a home in Thousand Oaks, California.

Bynes was 13 when she landed her own hit variety program, "The Amanda Show" on Nickelodeon. She went on to star in the TV series "What I Like About You" and several movies, including "What a Girl Wants," ''Hairspray" and "She's the Man."

She has publicly stated that she has retired from acting. Her last film credit was 2010's "Easy A," which starred Emma Stone.