TOMAHAWK, Wis. (AP) -

An Illinois-based company has been fined more than $185,000 after a worker was severely burned at a Wisconsin plant where five people have been killed since 2008.

The Occupational Safety and Health Administration announced the fines Thursday against Packaging Corp. of America. PCA makes cardboard and paper boxes.

OSHA says a PCA worker was severely burned in March while trying to light a steam boiler in a paper mill in Tomahawk. OSHA says the company should have prevented the ignition of flammable vapors and given workers proper safety equipment.

A message left at the company's headquarters in Lake Forest, Ill., was not immediately returned.

Five workers were killed at the plant in the past five years. Three died in a 2008 explosion and two were fatally burned by ash last year.