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BRIDGETON, Mo. (AP) _ Missouri authorities and federal safety inspectors are investigating the death of a worker at a refrigeration equipment factory.

A Robertson Fire Department assistant chief tells the St. Louis Post-Dispatch the victim died Saturday at the Hussmann plant in Bridgeton. The company makes refrigeration equipment and food display cases.

An Occupational Safety and Health Administration spokesman says investigators arrived Monday. He says preliminary findings show electrical power might not have been cut off to equipment before the man worked on it.

The spokesman says OSHA has visited Hussmann four times in the past five years and has not found any violations since 2010.

The newspaper reports the company did not return a request for comment.