University of Chicago cancels classes after threat

The University of Chicago canceled Monday classes after being warned by the FBI that someone had threatened online to commit an act of gun violence on campus, university President Robert J. Zimmer announced Sunday.
Students and all non-essential staff were advised to stay away from campus through midnight Monday. Students in college housing were asked to stay indoors.
Zimmer cited "recent tragic events on campuses across the country" in the decision. College campuses have been the sites of several shootings this year.
The University of Chicago, a private school with about 14,500 graduate and undergraduate students, is located several miles outside downtown Chicago.