AIRSPACE AROUND AND OVER A FOREST FIRE IS CLOSED TO ALL AIRCRAFT NOT DIRECTLY INVOLVED IN FIRE FIGHTING OPERATIONS.
Anyone who violates controlled or restricted airspace and endangers the safety of manned aircraft could be subject to fines or administrative penalties up to $25,000 and/or imprisonment.
http://www.tc.gc.ca/eng/civilaviation/opssvs/managementservices-referencecentre-casa-2015-05-2166.html