WAUKEGAN, Ill. (AP) — Crews have recovered the body of another victim of an explosion at a northern Illinois silicone plant that left four workers dead.

Waukegan Fire Marshal Steve Lenzi says the body was recovered late Tuesday from the rubble of the AB Specialty Silicones factory in Waukegan, about 50 miles (80 kilometers) north of Chicago. The identity of the victim hasn’t been released.

The Lake County Coroner’s Office on Tuesday identified two of the victims of Friday’s blast as 57-year-old Jeff Cummings of Kenosha, and 53-year-old Byron H. Biehn of Brighton Township. Officials previously identified a third victim as 29-year-old Allen Stevens of Salem.

Lake County Coroner Howard Cooper says an autopsy of the fourth victim is set for Thursday.

Lenzi has said there is no evidence of foul play and the explosion appears to be the result of an accident within the processes at the factory.