Over the weekend, a new series of anti-Semitic incidents rocked New York, with spray-painted swastikas appearing on dormitory room doors at Manhattan’s The New School on Saturday and on a Crown Heights sidewalk on Sunday morning.

Four dormitory doors at The New School were defaced with swastikas, targeting Jewish students, according to several news reports. Many students were shaken up by this incident, and said they never expected this to occur in New York City.

“It was just heartbreaking,” said Sam Lichtenstein, a Jewish student whose door was among those targeted. “This is something you read about happening in other areas, and it's crazy to have it happen in such a progressive city, and a progressive university.”

The New School President David Van Zandt quickly denounced the attacks in a public statement. “We take any such instance seriously, investigate swiftly, and take appropriate action to ensure the security and safety of all our students.”

Mayor de Blasio spoke out against the hate crime as well, stating in a public statement, “Hate speech is reprehensible, and has no place in NYC.”

The following morning, a white spray-painted swastika was discovered on a Crown Heights sidewalk on Sunday morning in front of a 78-year-old man’s house, according to JTA.

Mordechai Lightstone, a member of the Crown Heights Jewish Community, tweeted photos of the graffiti, later adding that an orange safety cone had been placed on top to cover it.