Fire crews are on scene of a blaze at Ridley College in St. Catharines.
The fire was located in the attic area of the building where the pool is located.
Crews have knocked down the main body of fire and are overhauling and checking for hotspots.
No injuries have been reported.
The private school is thanking emergency officials for their fast response.
"Ridley College can confirm that the small mechanical fire has been contained and all students, faculty and staff are safe. We commend our community and the first responders for their swift action and assurance of everyone's safety."