A Case Farms tanker truck overturned at the intersection of Main Avenue NE and Eighth Avenue NE on Tuesday afternoon in Hickory and caused Hickory Fire Department, Hickory Police Department and Catawba Emergency Services to respond to the scene. The driver was attempting to offload the trailer and disconnect it but accidentally caused the trailer to overturn, HFD Fire Education Coordinator Terri Byers said. The overturned truck spilled chicken byproduct or waste, according to HFD officials.