A spokesperson from Port Adelaide has described the images of a man wearing a Power guernsey and a swastika as disturbing.
The images have appeared over the past week - believed to have been taken in Melbourne.
“Port Adelaide is disturbed by the image and does not condone the action of the individual. It is strictly against our supporter code of conduct,” Port Adelaide’s Matthew Richardson said.
“If anyone can identify the person please advise the club,” Richardson said.
Port Adelaide were unable to ascertain if the man was a member of the club.