Police are investigating the incident at Adelaide Youth Coaching Centre at Cavan.
9News understands an adolescent allegedly lashed out at a lot of guards on the jail this afternoon, with one hit within the face a number of instances and rushed to hospital.
He is 18 and authorities are whether or not he ought to be moved to an grownup jail.
The alleged assault follows a lot of incidents on the centre over the previous few weeks.
Earlier this month a unit was despatched into lockdown when an inmate stole the keys from a employees member.
Officers had been referred to as in to regulate that state of affairs however the incidents are prompting questions in regards to the security of employees.