"The U.S. Chemical Safety Board is joining the investigation into the Friday night fire at Sunoco Logistics in which seven contract workers were injured, including four who were critically burned.

Three others were treated and released from local hospitals.

The Chemical Safety Board cited "hot work" as its reason for joining the investigation. It defines "hot work" as anything involved in burning, welding or similar spark-producing operations that can ignite fires or explosions."

Dan Wallach reports for the Beaumont Enterprise August 15, 2016. [2]