Police have determined actress Amanda Bynes is to blame for a car accident that left another driver with minor injuries.

The Hairspray star, 22, was not under the influence of drugs or alcohol when she caused the collision on Saturday in Los Angeles, authorities confirm.

Sgt. Murrel Pettway of the Los Angeles Police Department tells People.com, "Ms Bynes was driving a Bmw when she made an unsafe turn and another car hit her."

"It was determined that she was at fault, but no crime was committed. The other driver complained of minor injuries."

"Drugs and alcohol were not involved. It was just a typical car accident. There was no serious damage to either vehicle."