From CBC News

Firefighters  received a 911 call shortly after 7 p.m. Arriving on the scene, they found a fire burning on the third floor of the townhouse. 

The house was extensively damaged, but firefighters kept the flames from from spreading.

 

http://www.cbc.ca/news/canada/newfoundland-labrador/buckmaster-s-circle-fire-sends-4-to-hospital-1.2694884