A large field fire ignited at North 20th Road, just west of East Fourth Road, near Tonica. Cedar Point, Oglesby, Utica, Hennepin, and many other departments responded to assist.
Firefighters also responded Wednesday to a field fire near Ransom and a fire at Starved Rock State Park.
Wednesday is a red flag day, which means there is an increased threat for wildfires and brush fires. Low humidity and strong winds made conditions favorable for fires.