INDUSTRY, Calif. — A 40-year-old woman has been found dead in a machine at a Southern California food processing plant that is a major supplier for McDonald’s restaurants.

Los Angeles County sheriff’s detectives say the woman’s body was found early Tuesday at Golden State Foods in the City of Industry. Investigators believe her death was accidental.

No other details were given about her death or about the woman except that she was an employee.

The Irvine-based company has distribution centers across the nation. Its Web site says the company supplies McDonald’s and developed the sauce for the restaurant’s Big Mac in the 1960s.