OFFUTT AIR FORCE BASE, Neb. (AP) — Authorities are investigating a fatal construction accident at Offutt Air Force Base south of Omaha.

A base spokesman told KETV-TV in Omaha that a 47-year-old man died in Thursday’s accident. He was working along the parade grounds on General’s Row at the time.

The man was a subcontractor for a project on the base. His name and details of the accident have not been released.