Paper Mill Explosion Kills Three

Lake Forest, IL-based Packaging Corp. of America manufactures containerboard and corrugated packaging products. It operates four paper mills and 67 corrugated product plants in 26 states. It registered sales of $2.3 billion last year.

The AP also reported that the Tomahawk plant had been cited three times for safety violations in the last 10 years. It was cited twice in 2006 for lacking safety guards on machines.