A pub close to Aberdeen University has been identified as a common factor in a number of cases of coronavirus among students.
Overall, 62 cases have been identified which are connected to the university.
Many of the students, including some living in university halls and private flats, visited The Bobbin pub on King Street.
City council officers have inspected the bar, and say they are satisfied with safety measures in place.
A spokesman for NHS Grampian said the positive cases were currently not being treated as a single cluster.
He added: "Investigations are ongoing and efforts are being made to identify any linkages between them.
"We are aware of a number of cases who have attended at The Bobbin, on King Street, Aberdeen, on or after September 17.
"The bar has provided full customer lists for Test and Protect tracing.
"There is currently no evidence of spread to the wider community and, working with the university, various control measures have been implemented in an effort to curb the risk of any further transmission."
Meanwhile, the number of confirmed Covid-19 cases at two student halls in Dundee has risen to 96, an increase of 12 since Monday.
NHS Tayside said there were now 72 cases at Parker House, run by private company IQ, and 24 cases at Abertay University's Meadowside Halls.
Students at the Aberdeen University have been warned that fines could be imposed for coronavirus rule breaches.
The university has written to them following reports of guideline breaches in halls of residence at the weekend.
There is a warning of "robust action", with fines of up to £250. There is also the potential for further action - including suspension or expulsion.
Some students said it was a "disappointing" stance being taken by the university.