Police have reported a man after thieves broke into his shed and stole his cannabis plants.

Police were called to Forbes Street at Port Lincoln just before 5am on Thursday, March 18, after reports of several men breaking into the victim’s shed.

The thieves stole a quantity of cannabis and fled prior to police arriving.

The victim of the theft, a 39-year-old man from Port Lincoln, was reported for cultivating and possessing cannabis.