Port Police are growing concerned over the number of break-ins occurring in Port Pirie.
50 break-ins have been reported in the city since the beginning of March.
A 37-year-old man was arrested last week for breaking into a house on Tuesday night.
Police are yet to determine whether he is linked to any of the other cases.
Police allege they saw the man acting suspiciously and after arresting him found stolen property and a gun in his house.
Anyone with information is asked to contact crime stoppers on 1800 333 000.