UPDATED 03/01/12 8:52 a.m.

CHICAGO (CBS) — A Chicago Public school principal is accused of assaulting a student at a school in the Rogers Park neighborhood.

Kenneth Elmore, the father of the student, says his son was roughed up Wednesday in the principal’s office at Kilmer Elementary School, 6700 N. Greenview Ave., the Chicago Tribune reported.

Elmore’s son, Ken Jr., said the principal threw him up against a wall, the newspaper reported. Elmore’s son said he suffered a loose tooth that ended up falling out during lunch Wednesday, the Tribune reported.

The Sun-Times Media Wire reported the principal is accused of physically assaulting three students. Elmore said his son and the two other children had all been called into the principal’s office for misbehaving, the Tribune reported.

Police have confirmed to CBS 2 that an investigation is underway.

No charges have been filed against the unidentified principal. Chicago Police and the Chicago Public Schools are investigating.

LISTEN: WBBM Newsradio’s Mike Krauser reports