18-wheeler engulfed in flames; cargo determined total lost Deputies and LaDOTD workers remain on scene while towing services make arrangements to remove the trailer and clear the scene of debris. (Source: NPSO) By Alex Onken | May 3, 2021 at 9:02 AM CDT - Updated May 3 at 9:02 AM NATCHITOCHES PARISH, La. (KSLA) - An 18-wheeler and its cargo were destroyed in an early morning fire on Monday, May 3. Deputies with the Natchitoches Parish Sheriff’s Office and firefighters with Natchitoches Parish Fire District #6 were called to an 18-wheeler fire on Interstate 49 northbound near mile marker 143, according to NPSO. That’s north of the city of Natchiotches.