Both directions of Interstate 55 northwest of New Orleans are closed after a series of 25 multi-car pileups killed two people in zero visibility, according to the St. John the Baptist Parish Sheriff.
Wildfires in the drought-stricken state have been burning all summer. The combination of smoke and fog turned deadly.
But on the other hand, every second you spend inside the fog puts you at risk. The safest thing you can do is clear the fog as quickly as possible.