Tucson Fire Department crews responded to a working fire incident Tuesday afternoon near Alvernon and Irvington.
TFD says dispatchers received the call at approximately 3:15 p.m., and crews arrived on scene by 3:18 p.m.
KGUN 9 spoke with Nicholas Lamb, a driver with Arizona Trucking and Materials, who said he saw smoke rising as he was heading toward the area. He said police informed him the fire started in the Arizona Trucking yard and then spread to the neighboring Southern Arizona Paving property — a company known to store propane tanks…