Horrifying   The Super Fog Tragedy Near New Orleans!

Seven fatalities in 158-car-pile up near New Orleans

"Super fog" reduced visibility, leading to the disaster

Twenty-five people sustained injuries in the accident

Concerns that the  death toll may rise

Some vehicles caught fire, leaving burnt-out wreckage

Motorway closure expected until at least midday on Tuesday

National Weather Service warns of potential future "super fog."