The Dexter Fire Department responded to a structure fire on Westport Drive Wednesday afternoon. Don Seymore said the fire began about 4 p.m. Seymore said the home sustained heavy damage and was a total loss. Seymore further said the fire started on the exterior side of the house near the heat pump. Seymore said no one was injured. A cat was injured and treated on the scene by Stoddard County EMS. The cat was returned to the owner and an update on its condition was not available.