(AP) — A 53-year-old man has died after being buried under a pile of silage at a feedlot in northeast Nebraska.

Stanton County Sheriff Mike Unger says the accident that claimed the life of Matthew Winkelbauer on Monday afternoon also injured 60-year-old Weldon Marotz Jr.

Unger says the pile fell onto the two in an open silage pit at the Fore-Quarters Feedlot southeast of Norfolk. Winkelbauer, of Norfolk, was pronounced dead at the scene. Marotz, of Stanton, has been flown to an Omaha hospital.

The accident is being investigated.