A man has been caught travelling more than 70km/h over the speed limit yesterday.

About 6.20pm on Sunday 9 June, patrols were conducting speed detection duties on Main South Road at Morphett Vale.  At this time, they detected a black Holden Commodore sedan travelling at 136km/h in a 60km/h zone.

Police followed the sedan where it came to a stop on Pimpala Road at Old Reynella.  The driver and sole occupant of the vehicle, a 38-year-old man from Old Reynella, was reported for driving at an extreme speed.

His vehicle was impounded for 28 days and he was issued a 12 month immediate loss of licence.