(Lancaster, WI) — Authorities say heavy fire damage was done to the Premier Co-op in Lancaster Saturday morning. Firefighters from Lancaster, Fennimore, and Potosi plus police and E-M-S, were called to the scene just after 4:30 a-m. No injuries were reported. The building was described as “fully involved” as fire crews arrived on the scene. The fire was quickly contained and two adjacent buildings were protected. Investigators are trying to determine what caused the fire that started in a storage building.