A pedophile has been arrested for allegedly breaching a restraining order and contacting children on Facebook.
The arrest in Adelaide has prompted a police warning to parents to talk to their children about using the internet safely.
Detectives say they arrested the 29-year-old from Elizabeth East over breaching his pedophile restraining order and obligations under the child sex offender registration act.
"Police will allege the offences were committed by the man utilising the internet social networking medium known as Facebook to liaise with children," police said in a statement on Thursday.
The man was released on police bail and is expected to appear in court at a later date.
Sexual Crimes Investigation Branch superintendent Steve Ryan says the arrest highlights the emerging challenges and risks associated with using social network sites.
"Some people unfortunately use social network sites as a means of inappropriately identifying vulnerable persons," he said.
Parents and carers are encouraged to discuss this issue with children and adopt safe strategies, he said.