The U.S. Occupational Safety and Health Administration will be investigating an accident where about 70 teenagers were sprayed with a fungicide as they worked in a corn field near Pesotum.
Authorities say about 75 people, many of them teenagers, who were part of a detasseling crew were accidentally sprayed.
Four were transported by ambulance to Carle Hospital with breathing problems and flu-like symptoms.
The rest were driven to the hospital to be checked out.
There we no other serious injuries reported.