A large fire has engulfed buildings on Northland Road in Londonderry.
Firefighters are currently battling the blaze at the former Foyle College site.
The PSNI issued a warning on behalf of the Northern Ireland Fire and Rescue Service on Saturday morning.
“Northern Ireland Fire and Rescue Service have asked us to pass on that anyone living in the vicinity of the old Foyle College site on Northland Road should keep their windows and doors closed due to an ongoing fire,” read the statement on social media.
“NIFRS have informed us that the structure contains high level of asbestos and exposure to the smoke should be avoided.”