Sad news for Amanda Bynes.

The 28-year-old actress was arrested on Sunday morning at 3 a.m. for DUI, the California Highway Patrol confirms to E! News. She has been charged with a misdemeanor after police "determined she was under the influence of a controlled substance" while driving. The former Nickelodeon star was held at the Van Nuys, Calif., station on $15,000 bail before she was released at 12:44 p.m. that same day.

According to officials, Bynes was traveling westbound on Riverside Drive in Sherman Oaks as she approached the intersection at a red light on Van Nuys Boulevard. She stopped for the red light, but she stopped in the middle of the intersection, at which point the actress was pulled over and "given a series of field sobriety tests, which she was unable to complete."

Bynes was then transported to the CPH West Valley Office where she was given a drug evaluation test that, according to officials, determined she was under the influence of a controlled substance (the substance is unknown).