The Jarrettsville Volunteer Fire Company was alerted to respond two engines to the scene of a working building fire located in the 2200 Block of Conowingo Road in the early morning hours. First arriving units found a one story commercial warehouse with fire showing from the corner of the building. Engine 712 & Engine 714 arrived and assisted units with fire extinguishment and overhaul. Units were on scene for an extended period of time before being placed back in service.