FITCHBURG, Wis. (AP) — A worker at Sub-Zero in Fitchburg died after becoming trapped in machinery, police said.

Emergency crews were called to the company Friday night about someone who was not breathing and had no pulse, Fitchburg police Sgt. Andrew McCarthy said.

The trapped employee was freed by the Fire Department and pronounced dead at the scene, McCarthy said.

Authorities had not released the employee’s name, the Wisconsin State Journal reported.

The incident appears to be accidental, McCarthy said. The Occupational Safety and Health Administration, Fitchburg police and the Dane County Medical Examiner’s Office are investigating, along with representatives from Sub-Zero.

Sub-Zero designs and builds refrigeration, cooking and dishwashing appliances.