UPDATE: The Acadia Parish Office of Homeland Security and Emergency Preparedness says Xylene was among the chemicals contributing to the fire and multiple explosions heard this afternoon.
Xylene is used as a solvent in the printing, rubber, paint and leather industries.
It is found in small amounts in airplane fuel, gasoline, and cigarette smoke.
The Department of Environmental Quality is currently testing air quality before evacuation can be lifted.
No injuries have been reported.
There is a mandatory evacuation is in place for those within a mile north of the Flowchem facility.
A shelter has been established at the Mire Fire Department, at 5248 Mire Hwy in Duson, LA 70529.
Those within three miles north of the 289 Cutlass Loop location have been asked to take shelter in place, state police said.
Both lanes of Interstate 10 from the Lafayette I-49 exit to Crowley are closed. The interstate from Crowley to Scott, State Police Troop I spokesman Brooks David said.
Drivers are asked to reroute to major highways and other alternative routes.
Massive plumes of smoke are still billowing from the chemical facility at this time. No injuries have been reported, but the building is still engulfed in flames.
FlowChem is a specialty oilfield chemical provider that operates across the Gulf and U.S.
The company provides products and services to major oil and gas companies, plants and refineries.
It maintains two chemical blending facilities, one in Duson and one in Texas. It also operates multiple warehouses.
We will update this story are new information becomes available.
We will update this story as new information becomes available.