All pupils and staff at an additional support needs school in Dundee have been told to self-isolate for 14 days.
Twelve cases of Covid-19 have been identified in connection to Kingspark School, which was closed on Wednesday for a deep clean.
The case numbers now include a pupil and a decision has been made which will see the school remain closed during the period of isolation.
It has also been advised anyone who lives with a pupil, such as parents, carers or siblings, should self-isolate for 14 days if they are unable to maintain physical distancing within the household.
Dr Ellie Hothersall, consultant in public health medicine at NHS Tayside, said: “Due to the complex needs of the pupils and the very close proximity of care required, the situation at the school is highly complex.
“We are therefore taking the precaution at this time of advising that all staff self isolate for 14 days from the date they were last on site.
“Additionally, we ask all pupils and their households to self isolate for 14 days from Thursday, August 20. Guidance has also been shared with the families on what this means for them and how they will be supported.”
Paul Clancy, executive director of children and families services at Dundee City Council, added: “I would like to reassure families that this action is being taken to keep everyone safe.
“This is our paramount concern and we cannot be complacent.”