MANSFIELD, La. - A fatal traffic accident prompted the closure of all northbound lanes of Interstate 49 in DeSoto Parish early Wednesday, according to the DeSoto parish Sheriff's Office.

The multi-vehicle crash, reported around 4:15 a.m., occurred amid extremely dense fog, which significantly reduced visibility in the area. Lanes were finally reopened to traffic just before 5 p.m.

The accident happened near the 162 mile marker on the far south end of the parish. Authorities confirmed the crash resulted in at least one fatality.

The first crash happened when an 18-wheeler overturned and a chain reaction of crashes followed, including a pickup truck that ran into the rear of another 18-wheeler.

Two DeSoto sheriff's deputies who responded to the crash shared an image from their dash camer

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