Nairn Academy is the latest Highland school to be hit by a case of Covid-19.
A staff member has tested positive, and contact tracing is underway.
A number of pupils have been identified as close contacts during the school day and have been advised to self-isolate at home until Tuesday October 14, returning to school as normal after the school break.
The affected person was last at school on Wednesday September 30.
A letter from Public Health to Nairn Academy parents advises that if they have not been contacted, their child has not been identified as a close contact.
It stresses that anyone who is well and has no symptoms does not need to be tested.
The letter begins: “The NHS Highland Health Protection Team (HPT) have been advised that there has been a confirmed case of COVID-19 in one of the members of staff in the school. We know that you may find this concerning but we are continuing to monitor the situation and are working closely with the head teacher.”
A Highland Council spokeswoman said: “A small number of people from Nairn Academy have been advised to self-isolate for 14 days as they have been identified as a possible close contact of a positive Covid case.
“Letters have been sent out to the school community on Thursday October 8.
“The Highland Council continues to work in partnership with NHS Highland Health Protection Team.
“The school has an enhanced cleaning regime in place and remains open till end of term.”