The Mount Vernon Fire Department responded to a fire on the 500 block of South 15^th Street on Saturday at 9:10 PM.  Eleven firefighters, two engines and one aerial responded, while one ambulance was requested to standby at the scene due to the heat, even though it was night.  The fire started in the bedroom and was contained to that room.  There was heat and smoke damage throughout the rest of the home.  Firefighters were on scene for about two hours.  The cause of the fire is still under investigation, but is not considered to be suspicious.  There were no injuries reported.  They then responded to that location Sunday at 8:28 AM for a rekindle.  Two firefighters and one engine responded.  A charred header in the attic was smoldering and was quickly extinguished.  The two firefighters were on scene for about 30 minutes.