A man died after falling 120 feet from the top of a silo he was working on, police said.

Jesus Guerrero, 67, of Loredo, Texas, died Friday morning of injuries relatied to the fall, McLean County Sheriff Don Charging said.

Guerrero was wearing a safety belt and a helmet, but was not tied off while pouring concrete for a silo at the Blue Flint Ethanol Plant in Underwood, Charging said.

Guerrero went missing some time between 4:15 a.m. and 6:15 a.m., according to co-workers, Charging said.

"When they called down to the people on the ground, everyone went looking, and that's when they discovered him,"Charging said.

Charging said there was no evidence of foul play, according to preliminary autopsy reports.

The Occupational Safety and Health Administration was contacted and were investigating the incident, Charging said.

Blue Flint Ethanol, a 50-million-gallon a year plant owned by Great River Energy and Headwaters, Inc., was scheduled to open January 2007.

Calls to the ethanol plant Sunday evening were not answered.

- Crystal R. Reid