Ottawa Firefighters say no one has been reported hurt as they battle at blaze in Orléans.
Firefighters were called to 834 Vinette Crescent--just north of Jeanne D'Arc Boulevard North--at around 11:45 a.m. Tuesday.
When firefighters entered the home to search it, they had to quickly evacuate because the blaze burned a hole through the main floor.
Fire officials confirmed that no one was home at the time, but the passerby who called 911 reported hearing a dog barking from the window.
Whether a dog has been found has not been confirmed.
A fire investigator has been dispatched to the scene.