A large plume of smoke was seen over the refinery, but it unclear what caused the incident.
Public records show six units around the blast site were hit the hardest, including two units that had to be demolished.
It is unknown at this time what caused the explosion.
CHALMETTE, La. (WVUE) - An explosion at an operating unit at the Chalmette Refinery was reported just before 1 p.m. Friday (May 8). Fire crews are still inside the refinery, dousing the tanks with ...