(CHICAGO) Chicago Police are investigating a report of a sexual assault at St. Francis de Sales High School on the Far South Side in late March.

The incident allegedly involved an 18-year-old male victim in a school locker room about 3 p.m. March 23, a source told the Chicago Sun-Times. The victim allegedly was attacked by five other males, police said. A de Sales parent and school representatives reported the incident to police on Tuesday, police said.

Police had no one in custody in connection with the incident Wednesday.

The school issued a statement on its website Wednesday:

“Dear School Families,

The safety and well-being of our students at St. Francis de Sales High school is a top priority. Yesterday, April 28, after we completed an extensive investigation of a reported bullying incident, consequences were imposed on all students involved.

Our students are educated in a community of faith committed to academic excellence and our caring environment enables students to feel safe and be successful. It is important for the St. Francis de Sales community to be mindful of the care and concern we show towards everyone. I hope you will take time to discuss with your child the sense of safety at St. Francis de Sales, as well as the treatment of fellow classmates.”