General Motors and local authorities are investigating exactly what chemicals exploded inside a metal stamping plant killing one and injuring eight.
The blast happened Tuesday afternoon in Marion, Indiana, about 60 miles northeast of Indianapolis. A 48-year-old contractor was killed.
Initial reports said a tank of chlorine dioxide was involved, but a GM spokeswoman says there are conflicting reports of the substance involved.
By Tuesday night, all of the employees taken to the hospital were released. The plant’s third shift was told to stay home.
Operations resumed with the first shift this morning.
1,600 people work at the plant.