A staff member at a school on Adelaide’s coast has been charged with a historical child sexual offence.

The primary school, which The Advertiser has chosen not to name for legal reasons, sent a letter to its community on Wednesday notifying them a staff member at the campus had been arrested.

“This incident does not involve any students at our site and there is no evidence at this stage to suggest any student at our site is involved,” the letter said.

“However, I am concerned about the welfare of all students at our site because they may have had contact with the staff member at one time or another.”

The letter details the staff member is prevented from engaging in any child related work “and has been instructed not to attend any department site”.

Police are investigating following the arrest.

“If you have any concerns about the safety and welfare of your child, please feel free to contact me directly at our school,” the letter said.

Families were directed to seek support if required.

After The Advertiser made inquiries an SA Police spokesman said a man in his 30s from the southern suburbs was arrested on August 8.

“Police are aware of a letter sent by the Department of Education,” he said.

The man will attend the Christies Beach Magistrates Court on September 14.

Near identical letters were sent to the communities of at least two other schools, including a secondary campus.

The Education Department did not confirm whether those letters referred to the same male staff member in his 30s.

A spokeswoman said: “The Department for Education has a policy around informing a school community at the appropriate time whenever allegations of sexual misconduct are made against any person who has been involved in any capacity at a school”.

“This letter has been issued in keeping with the protocols laid out in the Debelle Report,” she said.

“Parents have been provided with guidance for support around the wellbeing of their child if this information raises any concerns for them.”

It remains unclear if the alleged offending occurred at a school campus.