Police in Illinois say that 13 people were shot and injured early Sunday, when a fight started along the riverfront in the city of Peoria.
None of the wounds are considered life threatening, police spokeswoman Amy Dotson told local newspaper The Peoria Journal Star.
Officers responding to a report about people being shot ended up finding a gathering of about 200 people in the area.
Two of the people had serious neck wounds and were taken to a hospital.
The remaining 11 individuals with gunshot wounds to the arms and legs arrived separately at local hospitals. Six of those who were shot are men and seven are women, authorities said.
All of the injured people are expected to survive, authorities say.
Police believe that there were several shooters, due to the number of shell casings investigators found.
The area is described as a typical gathering place in the community. However, the crowd is not believed to have gathered for a particular event.
No suspects have been arrested yet, although police are reportedly investigating at least one person of interest.
Investigators also do not yet know what caused the fight.
Peoria, which has a population of about 110,000 people, is located about 155 miles southwest of Chicago.