Police are investigating a break-in and theft in the southern suburbs and have released CCTV images of a suspect who later used credit cards stolen during the break-in.

Sometime between 1am and 4am on Wednesday 9 February, a wallet was stolen from a car in a carport at Sellicks Beach.

Credit cards from the wallet were later used at service stations in Seaford Meadows and Seaford by the man pictured in the photos.

The suspect is described as being of Caucasian appearance, medium build, aged in his 30s and was wearing an orange high-visibility jacket over a grey hooded jumper, red shorts and grey sport shoes. He appears to have a tattoo on the back of his right calf and was driving a black ute.

Anyone who recognises the suspect is asked to call Crime Stoppers on 1800 333 000, or online at www.crimestopperssa.com.au