VAN BUREN COUNTY, Mich. -- A contractor died at the hospital after being buried in corn silage at a farm on CR362 in Hartford, Michigan.

The Van Buren County Sheriff's Department and other first responders were called to the Red Arrow dairy farm around 6:30 a.m. Friday after a worker was found unresponsive.

The worker was taken to Watervliet Hospital where he was later pronounced deceased.

Deputies say the investigation revealed the 35-year-old man from Middleville, Michigan, was a subcontractor on site conducting testing.

While there, part of a 30-foot high pile of corn silage broke away from the stack and fell onto the victim.

Deputies say corn silage is fermented high moisture food which is fed to cattle.

The Michigan Occupational Safety and Health Administration (MIOSHA) was contacted and will investigate.