ELGIN, Neb. (AP) — A federal agency says it is looking into the death of construction worker in northeast Nebraska.

The Occupational Safety and Health Administration says the 40-year-old worker, whom it did not name, died Wednesday morning. The agency says the worker was operating a 90-ton crane along a county road, when the crane slipped into the ditch, overturning and killing the worker.

A message left for Antelope County Attorney Joseph Alber, who also serves as the county coroner, was not immediately returned Thursday.

OSHA said Thursday that the worker was employed by Tradesman International of Omaha, and was working for Wanzek Construction Inc. of West Fargo, North Dakota, on the construction of a wind farm near Elgin.

OSHA said it will also investigate complaints alleging other hazards to workers at the site.