Other - Storage / Warehouse, Storage / Warehouse Sprinklers keep fire from spreading in UPS facility (Landover, MD) December 10, 2013 viking210 A UPS truck caught fire inside a shipping plant on Saturday, December 7, and fire crews quickly responded to the fire call. According to the Prince George County Fire Department, the fire sprinkler system in the shipping plant, which had activated in response to the heat of the fire, helped the firefighters to get the fire extinguished quickly. There were no injuries reported.