SEVERAL Adelaide youths who posted violent crimes on the internet have been arrested by police.
Two teenagers have been charged with arson while two have been reported for fighting and another for throwing fireworks.
The northern suburbs youths, aged between 14 and 16, were identified by police, who received complaints about videos on YouTube showing them committing criminal acts.
Police expect to make further arrests as they review videos posted on YouTube and seek the help of schools to identify offenders.