Storage / Warehouse, Warehouse Stockton, CA – Sprinkler system keeps semitrailer fire from spreading into warehouse at packaging company September 26, 2018 viking210 The cause and origin of a two-alarm fire Sunday night that burned two semitrailers, a train car and the roof of a nearby packaging warehouse in east Stockton remains under investigation today, according to the Stockton Fire Department. The fire was called in at 8:17 p.m. as a warehouse fire, but when crews arrived they observed two semitrailers fully involved with flames extending to the nearby warehouse operated by Pflug Packaging at 1203 N. Gertrude Ave. in an industrial area north of East Fremont Street. A boxcar on a rail siding just west of the trailers also burned. A Pflug spokeswoman said the impact of the fire on operations was “minimal.” No one but security personnel were on site at the time, the fire affected an empty corner of the large warehouse and the structure’s sprinkler system kept flames from spreading to palletized boxes inside. Firefighters had the blaze under control within 30 minutes, the Fire Department reported. Department spokesman Jeff Whitlock said six engines, two truck companies, two battalion chiefs and the chief’s operator responded to the scene. The last unit remained for mop-up until about 10:45 p.m. No injuries were reported.