POUGHKEEPSIE, N.Y. (CBSNewYork/AP) — Marist College’s main campus in Poughkeepsie is closed because of an anonymous online threat.

Marist College officials said the threat was posted on Twitter. No details have been released on the specifics of the threat.

The school canceled all classes and closed all offices Friday until further notice.

The college said students who live on campus should remain in their residence halls.

“I called Marist security and they’re saying we apologize for the inconvenience but obviously because of a threat of this magnitude we have to take every precaution,” senior Nicolas DeCicco told 1010 WINS. “Now there’s a lot more horror stories with campus shootings and obviously you never think it’s going to happen your school… but in light of what has been going on in the country lately it is a lot scarier because you realize that it could happen to you.”

Marist is a liberal arts college with about 5,500 undergraduates and 840 graduate students. It’s about 80 miles north of New York City.

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