Springfield city officials called for residents to stay home Sunday night around 8:30 p.m.
Police Chief Kenny Winslow said they made the decision after receiving information of potential “civil disturbances." He declined to elaborate on specifics.
City officials emphasized it was not a curfew, but a request.
The call comes as protests against police brutality in cities around the country have erupted into violence. Sunday afternoon, Gov. J.B. Pritzker authorized National Guard troops to be deployed to Chicago, which has been under a curfew.