NEW YORK (CBSNewYork) — Students at the New School were in shock Sunday evening after swastikas were found scrawled on several dorm rooms.

The swastikas were found scrawled in black marker on four walls of a New School dorm on Fifth Avenue near 13th Street around 4:45 p.m. Saturday, police said.

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“It was kind of scary, like you don’t expect it, and I wouldn’t expect that from the New School students who are supposed to be open,” a student told 1010 WINS’ Samantha Liebman.

Student Sam Lichtenstein posted a photo of a swastika that her roommate discovered Saturday on their door. They happen to be Jewish.

In an email, Lichtenstein said she thinks it was someone’s idea of a joke, but they were horrified. She said the school and NYPD have been investigating and have been very helpful.

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Many could not believe it could have been a fellow student who drew the swastika. But if it was, one sophomore said extreme action should be taken.

“I definitely think they should be expelled,” she said. “I think that’s not the values of our school and it’s like absolutely unacceptable.”

Meanwhile, images of swastikas were also found spray-painted on a sidewalk on Montgomery Street in Crown Heights, Brooklyn.

Mayor Bill de Blasio said in a tweet about the New School incident: “Hate speech is reprehensible, and has no place in NYC. To the affected, we stand with you. To the perpetrators, we are better than this.”

The Mayor’s office also addressed the Crown Heights discovery.