The Federal Aviation Administration is investigating why a small plane was forced to make an emergency landing in a southwestern Illinois soybean field.
St. Clair County sheriff's Capt. Scott Weymouth says none of the four occupants of the single-engine 1981 Piper 28 were injured during the landing. It happened about 2 p.m. Sunday near O'Fallon.
FAA spokeswoman Elizabeth Isham Cory says the plane had taken off from St. Louis Downtown Airport near Cahokia and was headed to Hamilton, Ohio.
Weymouth says the pilot told sheriff's deputies that the plane's engine failed, forcing the impromptu landing.