A steelworker died while operating a golf cart-style buggy on the job at ArcelorMittal Indiana Harbor in East Chicago, a company official said.
An ArcelorMittal employee died early Monday morning while working at the No. 3 Continuous Annealing Line, spokeswoman Mary Beth Holdford said. The steelworker was not immediately identified.
"The ArcelorMittal family extends our deepest sympathy to family and friends of the deceased and is offering onsite counseling services for employees," she said.
It was not immediately clear if the steelworker died in an accident or as the result of a medical condition. Holdford said the incident is under investigation by both the Luxembourg-based steel mill and the United Steelworkers union.
Union officials did not immediately respond to messages.
The Lake County Coroner's Office had no information on the steelworker's death, and the East Chicago Fire Department was not called out to the scene.
Earlier this year, steelworker Willie Batteast died after a crane accident at ArcelorMittal Riverdale, becoming the first USW Local 1010 member to die in seven years. It was the longest stretch without a fatality in the union chapter's history. Batteast was injured at the compact strip mill just across the state line in March, and died about a week later.