Firefighters are investigating the cause of a house fire Friday morning on Jessie Street off of Statesville Avenue in north Charlotte. They said they were called to the area for a brush fire, but when they arrived they found a home burning instead. Firefighters said most of the damage was done to the back and side of the home. It is vacant and no one was hurt. Channel 9 is asking if the fire started outside the home and spread, or if the fire was set on purpose.