The Occupational Safety and Health Administration has launched an investigation to determine the cause of death of a worker at Ford Motor Co.'s Louisville, Ky., truck assembly plant last week.
The employee, identified in local media reports as Ivan Bridgewater, 41, worked as an electrician at the plant.
Sgt. John Bradley, a spokesman for the Louisville Metro Police Department, said emergency medical services were already on the scene when officers arrived about 12:55 a.m. Eastern time Saturday.
"It appears that by the time actually we had arrived, the person had already been deceased," he said.
The department initially said the cause of death was electrocution, based on preliminary information at the scene, Bradley said.
The Jefferson County Coroner's Office, in a statement released Thursday, said Bridgewater died of blunt force trauma.
A deputy coroner confirmed the assessment, adding that Kentucky's medical examiner has not yet signed off on a cause of death, pending further study.
Bradley said Bridgewater's death has been ruled an accident.
OSHA has 180 days to conclude an investigation, according to Alexandria Englen, deputy communications director for the Kentucky Labor Cabinet.
"We are deeply saddened by the death of an employee early Saturday morning at Kentucky Truck Plant," a Ford spokeswoman said in a company statement. "Our condolences go out to his family, friends and co-workers during this difficult time."
The automaker said it is cooperating with the investigation.