Investigators are calling a commercial warehouse fire in Presque Isle arson.23-year-old Timothy MacFarline of Easton is now charged with setting the blaze.It broke out Friday night at the Northeast Packaging Company storage facility on Rice Street.Fire crews from Aroostook County had to contend with huge flames as well as hazardous chemicals being stored inside the metal facility. About 50 firefighters worked the fire into Saturday morning, before it was finally put out.MacFarline served as a paid call firefighter with the Presque Isle Fire Department since September 2007 and at the time of the fire he was employed by the Northeast Packaging company.This is the second Northeast Packaging warehouse to burn down in the span of a few months. Another facility in Caribou caught fire in August. Investigators are calling that fire suspicious, but an exact cause has not been determined.MacFarline was taken to the Presque Isle Police Department for booking and was later transported to the Aroostook County Jail in Houlton. He is currently out on bail and is set to appear in caribou superior court January 21st.