COLUMBIA, Mo. (AP) — A University of Missouri freshman has been arrested for his suspected involvement with anti-Semitic graffiti discovered inside a dormitory’s stairwell.

The school’s police department announced Tuesday that the 18-year-old was arrested on suspicion of second-degree property damage.

Capt. Brian Weimer said police wouldn’t release more details, citing an ongoing investigation.

Police also declined to talk specifics about the vandalism, but a Jewish student group at the university said the graffiti included swastikas and the words “Heil” and “You’ve been warned.”