A federal report has shed light on a tragic incident that resulted in 11 fatalities. The disaster occurred when a chemical tank failed, expelling a large amount of caustic liquid. This incident is considered one of the deadliest workplace disasters in recent decades.

An inspection had previously deemed the tank unfit for service, citing the need for internal inspections and repairs. However, these recommendations were not acted upon.

The cause of the failure is still being determined as part of an ongoing investigation. Further details about the incident can be found in the report released by the U.S. Chemical Safety Board.