The University of Maryland. Photo: Wikipedia.

A swastika and antisemitic epithets were scrawled on a dry-erase board in a dorm at the University of Maryland over the weekend, the university paper the Diamonback reported on Monday.

It was the third such incident in the last three months, university police said. A spokesperson for the police said the swastika was reported to have been drawn in broad daylight, between the hours of 10:30 a.m. and 1:30 p.m., on Sunday.

The residents of the dorm fired back with a note addressed to the anonymous vandals: “To whoever drew the swastika on our door — would you draw that if you knew one of our grandfathers was tied to a wall and shot at by Nazis in World War II just for being Jewish? 2/3 of us who live in here are Jewish. Think about it.”

Many are concerned about a growing trend of antisemitic acts being committed on college campuses across the US, and some groups, like the AMCHA Initiative in California — an NGO devoted to protecting Jewish students from antisemitism — have taken it upon themselves to highlight student reports of abuse.

The Anti-Defamation League has noted that while such incidents are rare, and most Jewish college students in the US feel safe on campus, the occurrences are “certainly disturbing.” Earlier this year, the ADL reported more than a dozen such incidents on campus, including at Stanford, the University of Missouri, University of Chicago and University of California, Berkeley.