A collision between a pickup and a tractor in a Gretna housing development sent one person to the hospital on Thursday.
It happened near 212th Street and Schramm Road in a new housing development.
Sarpy County Sheriff investigators say the pickup driver suffered a seizure and smashed into tractor at 60mph. He struck a fellow worker who was near the tractor.
The driver refused medical treatment. A medical helicopter from Lincoln took the other worker -- a 21-year-old -- to Creighton University Medical Center in critical condition. He had leg injuries and road rash on his face.