One day after publicizing the postings, Bloomington Deputy Chief Rick Hart said police still have not determined whether the man "is a victim or suspect" in the postings.
Hart did not say whether police have located the man or talked to him.
The images have been posted at city parks and on utility poles and stop signs along well-traveled roads this year and last in the two Minneapolis suburbs.
Hart has declined to disclose much about what the photos show, out of concern of compromising the investigation, but he did say they are "very graphic and very obscene in nature." Photos police shared with the news media were cropped from the shoulders up.
The deputy chief is asking any news media that publicized the image online to remove it "to respect the privacy of the subject of the photos."
He said there have been four public postings in Bloomington this year and last, while Eden Prairie "has had a few as well."
Anyone with information about the photos is asked to call Bloomington Police Detective Kim Jones-O'Brien at 952-563-4924 .
Paul Walsh • 612-673-4482