Winds combined with dry conditions have increased the fire risk across northern Ontario.
A fire broke out just before 2:30 pm in Kenora on Wednesday and forced the evacuation of several homes and a school in the area.
According to officials, it was jumping from tree to tree, burning a widespread area rapidly.
Strong winds made the fire more difficult to contain and blew a large cloud of black smoke towards Valleyview Public School. Students and staff were ordered to leave immediately and several roads in the area were closed as well.
Members of the Kenora fire service and the Ministry of Natural Resources worked to contain the flames, using ground crews and two air tankers overhead.
By about 8 pm Wednesday night, the fire was under control and no longer posed a threat to the affected area. Officials say all evacuees have returned home and roads have re-opened.
The cause of the fire is still under investigation and crews will continue to extinguish the flames on Thursday.