The fire remained under investigation by the West Virginia State Fire Marshal’s Office. Additional investigative work needs to be done before a cause is determined, Assistant State Fire Marshal George Harms wrote in an email late Sunday afternoon.
An estimated 60 firefighters responded from Hedgesville, Martinsburg, Bedington, Baker Heights, the West Virginia Air National Guard and Back Creek Valley. The rehab unit from Washington County also responded.
Mulligan said an airboat, on a trailer from Frederick County, Md., was backed up to a loading dock so its large fan could be used to eject smoke from the building. An airboat was similarly used at a Winchester, Va., warehouse fire in the last year or two.