Firefighters Suffer Heat Exhaustion

  Two firefighters are treated for heat exhaustion after battling a barn fire in Bradley County.  Bradley EMS Spokesman Stan Clark tells us the barn on Walker Valley Road went up in flames around three Sunday afternoon.
  The barn was filled with hay and the fire quickly destroyed the structure.
  Clark says the combination of the warm weather and the heat of the fire contributed to the two firefighters' exhaustion.  No other injuries were reported.
   Investigators are still trying to determine a cause.