About fifty firefighters were called out shortly after 2:30 a.m. to battle a blaze at the popular Spa Le Finlandais in Rosemère.
Firefighters say the blaze appears to have started in a mechanical room of a recently renovated section of the spa.
No one has been hurt, but Route 117 was closed to accommodate the trucks and other equipment.
Fire heavily damaged the spa in April of 2013.
Video: Firefighters are battling a major fire at the Spa Le Finlandais in Rosemère, early this morning. Avoid area. @CTVMontreal pic.twitter.com/txP3gMOEDr
— Cosmo Santamaria (@cosmoCTV) January 26, 2018