VIDEO: Multiple fire departments are responding to a vacant home at Ponderosa Dr. and Lilac St. The East Side Fire Department, Central Fire Department and St George Fire Department all responded to the scene in the 1400 block of Lilac St. The call came in around 4:50 a.m. and firefighters determined that the blaze started in the rear of the home. The home sustained extensive damage and investigators believe the cause of this fire is arson.