(JTA) – Vandals spray-painted swastikas on a Northwestern University campus building. Construction workers found the swastikas at a construction site for a new business school building on June 8, university officials said on June 11. The graffiti included at least one swastika and other racist comments, Vice President for University Relations Alan Cubbage told the Chicago Tribune. “There were some other things but I’d rather not be more specific,” he said. This is the second instance of swastikas at Northwestern in less than two months. In late April, swastikas were found in a library bathroom. At the time, 23 antisemitism watchdog groups urged university president Morton Schapiro to take more action to prevent anti-Semitism on campus.