A letter sent to parents and guardians of students at Walter Murray Collegiate on Oct. 1 says someone at the Saskatoon high school tested positive for COVID-19.

It did not specify whether the individual is a student or staff member.

"Families in the impacted classes have been notified. We are working closely with Public Health staff to ensure necessary measures are in place to protect all students," the letter said.

"Public Health will be contacting parents/guardians of students and any staff/visitors/volunteers who may have been in close contact with the case and providing direction. This means that if you are not contacted by Public Health, your child can continue to attend school."

Principal Tom Sargeant said in the letter that further updates would be provided as information becomes available.