A few weekend fires are bringing an advisory from Rural Metro Fire (RMF) in Josephine County. It says a fire destroyed a shop and pickup early Monday morning in the 200 block of Teel Lane in the New Hope area southwest of Grants Pass. It says though no injuries were reported, the fire is one of three fires in three days involving extension cords running to vehicles. The Office of State Fire Marshal is leading the investigation into its cause. RMF says the Office of State Fire Marshal concluded the cause of the Monday morning fire was related to an electrical issue involving an extension cord that ran from the shop out to a pickup truck to power a "block heater" used to keep diesel engines warm during cold temperatures. RMF says it remains unclear as to whether the extension cord or the block heater failed first. RMF says Monday's fire was the third fire in four days involving a power supply cord used to run electrical components in a mobile vehicle, after two RVs were damaged January 20.