The Muskoka Lakes Fire Department has dealt with its third fire this week.
On Wednesday, crews were called to Luckey Road where there was a bush fire.
The fire was happening on a campsite and after the fire was extinguished, officials found the cause was from a campfire.
Although it was unknown when the campsite was used, everyone is reminded no fires of any type are allowed under the extreme rating.
This includes for cooking or for warmth as well as fireworks.