Parents of pupils at an Inverness secondary school have been informed of a positive case at the school involving an S1 pupil.
A letter has been sent to parents and carers of Millburn Academy pupils informing them of the confirmed case.
The pupil last attended the school on Friday and NHS Highland said contact tracing is ongoing.
Close contacts of the affected pupil will be contacted directly and have been advised to self-isolate for 14 days until Friday, October 9.
Pupils who have to self-isolate have been advised they can return to school as normal following the October break.
All other pupils are able to continue to attend school as normal so long as they remain well.
NHS Highland has issued advice to parents that unless children develop symptoms, the household is free to continue their daily routine as normal.
If children or any members of the household develop symptoms, a test should be arranged with information available through the NHS inform website.
If a positive diagnosis is identified, all members of the household must remain home and not leave the house for 14 days, with the 14-day period beginning from the day when the first person in the house becomes unwell.
Household members should not go to work, school, public areas or use public transport.
Symptoms of Covid-19 include a new continuous cough and/or a high temperature, with a loss of or change in normal sense of taste or smell also experienced by some.
NHS Highland has said that for children, contracting Covid-19 will likely result in a mild illness.
A Highland Council spokewsoman said: “A small number of people from Millburn 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 today.
“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.”
Dr Tim Allison, director of public health with NHS Highland, said: “National guidance has been followed and all close contacts of the confirmed case are being advised to stay at home and self-isolate for 14 days.
“We are aware that positive cases can cause some local anxiety in the community. Please be reassured that our health protection team is working closely with colleagues within the Highland Council to continually monitor the situation. Strict control measures are in place at the school and there is currently no evidence of transmission within the school itself.
“The school remains open and, unless they have been identified as a close contact, your child should continue to attend if they remain well. Children and staff should not attend school if they develop any of the common symptoms.”
Local councillor Ian Brown said: “Hopefully it has been caught in time and they can control it. Parents will obviously be very worried so we are looking to reassure them that everything that can be done is being done.
“It is not what we were hoping for but when you look at the rest of the country it was a case of when rather than if.
“The vast majority of young people who catch this virus tend to develop mild symptoms so hopefully the pupil concerned recovers quickly.
“Hopefully this is a one-off and not the start of something. It has been caught early; the trace system is working well so people are informed and we hope there aren’t any further cases.”