Tralee Gardaí say they're seeing an awful increase in 12 and 13-year-olds sending inappropriate photos of themselves online.
Garda Cathy Murphy says parents need to get on top of it, as it's not something teenagers should be getting involved in.
She added they often send the photos to someone privately, but they are often screen-shotted or shared online.
Garda Murphy is advising young people not to post any photos that they wouldn't show their grandmother.