Updated at 9:26 p.m. ET
A chemical plant in Westlake, La., that caught fire during Hurricane Laura is still burning Thursday evening.
The facility, BioLab Inc., makes chlorine for swimming pools. Officials are unsure exactly when the fire started, but Louisiana Department of Environmental Quality (LDEQ) Press Secretary Greg Langley said his agency was informed of the fire around 9 a.m. local time.