NORMAL – An erroneous report of a man with a gun led to a lockdown at Illinois State University and the arrest of a man attempting to board a train to Chicago.

The Tuesday incident began when the man allegedly accosted a female student.

ISU chief of staff Jay Groves says the woman’s boyfriend called campus police to report the incident and a campuswide alert was issued, prompting the lockdown of two laboratory schools and restricting access to residence and dining halls.