BEATRICE, Neb. (AP) — One worker has died after collapsing at an auto parts manufacturing company in southeast Nebraska, and another worker remains hospitalized.

Beatrice firefighters were called to the Neapco Components plant Monday morning, and a suspicious smell was reported. Before firefighters arrived, one worker needed CPR.

Both workers were taken to hospitals, and one man later died at the Nebraska Heart Institute in Lincoln. The workers’ names weren’t immediately released.

Deputy Fire Chief Jake Carrel says a hazardous materials crews investigated the odor into the afternoon and identified the likely source.

But Carrel wouldn’t identify what caused the odor until it is confirmed. He says the smell was only in one room of the Neapco plant and didn’t affect the rest of the facility.