Police are investigating a Facebook page after several complaints about possible child exploitation material.
Detectives are liaising with Facebook staff to identify who was responsible for posting the images and comments.
“Police are attempting to ascertain the identity of the people in the photos, as well as determine their ages,” a spokeswoman said.
“If the images are people under the age of 18, posing in a sexually explicit manner, then it is illegal to post them online.”
The maximum penalty for distributing child exploitation material in WA is 10 years imprisonment.
Anyone convicted of this crime would also go on the Sex Offenders Register.
Police are reminding the public never to send pictures of themselves to anyone they do not know.
“Do not provide your personal information, including name, home address, phone number or school over the internet,” the spokeswoman said.“Pressing ’send’ is definite and final - you can’t get it back or take it down.”