Police are investigating an aggravated robbery at a Woodville West service station this morning, according to SA Police.
About 1.45am a man wearing a mask entered the service station on Port Road carrying an object in his hand, possibly a screwdriver, and demanded cash from staff.
The suspect ran off with cash and was last seen heading north along nearby railway tracks.
No one was physically injured.
Patrols searched the area with the assistance of dog operations who followed a track to the intersection of Clark Terrace and Jervois Street but was unable to locate the suspect.
The suspect is described as 183cm tall, solid/heavy build wearing a green hooded jacket with white motif and a ski or moto-cross mask on.
If anyone saw a man fitting this description or witnessed any suspicious activity in the area, please call Crime Stoppers on 1800 333 000 or report online at http://crimestopperssa.com.au
