(ROCKDALE) A southwest suburban man died Thursday afternoon in a workplace mishap in Rockdale.

Robert L. Dykes, 55, was pronounced dead at 12:17 p.m. at his job in the 100 block of Connell Avenue in Rockdale, according to the Will County coroner’s office.

Dykes, who lived in Joliet, was trapped between heavy machinery, the coroner’s office said. Preliminary autopsy findings determined he died of multiple injuries suffered in the workplace mishap.

Dykes was the owner of the company, according to Occupational Safety and Health Administration spokeswoman Rhonda Burke. OSHA responded to the scene, but did not open an investigation.

Rockdale police are investigating.