Six bodies have been discovered on a dairy in Colorado plains, sparking immediate concerns about what took place.

Southeast Weld Fire Protection District officials said crews dispatched to perform a 'confined space' rescue recovered the bodies.

Six bodies have been discovered on a dairy in Colorado plains, sparking immediate concerns about what took place.

Weld County Sheriff’s Office spokeswoman Melissa Chesmore said her agency didn't find anything criminal in nature.

Investigators are looking into what kind of gases may have played a role at Prospect Valley Dairy in Keenesburg