Police are currently at the scene of a two-car crash in Alderman Avenue, Seacombe Gardens, according to SA Police.
Emergency servces were called to the intersection of Alderman Avenue and Diagonal Road at 3.20pm after a car had collided with a parked car.
The female driver of the car was taken to the Flinders Medical Centre in a serious condition.
Northbound traffic on Diagonal Road is closed, and Alderman Avenue is closed in both directions.