NEW YORK, United States (AFP) — Biliana, an international student at New York’s Columbia University, is studying for exams but fears being arrested by immigration police.

Columbia professors, meanwhile, are scrambling to save research funding in the crosshairs of President Donald Trump’s administration.

An atmosphere of crisis hovers over campus as the semester winds down, as the White House accuses the prestigious university and other Ivy League schools of anti-Semitism and “woke” liberal ideology.

Several hundred foreign students nationwide have been threatened with the cancellation of their visas, while others have been targeted — and a few arrested, including at Columbia — over everything from participation in pro-Palestinian protests to traffic violations.

“The situation is just terrifying,” said Biliana, a 29-year-old law student, who feels such dread that she asked not to be identified by her real name or even the Latin American country she comes from.

“You feel like you cannot say anything, you cannot share anything.”

She went on: “Me and my friends, we have not been posting anything on Twitter,” and many are deleting old posts for fear of crossing an invisible red line.

“Basically, what we’re trying to do is just to go to normal classes,” she said.

‘No longer welcome’

Last week, with final exams looming, 80 pro-Palestinian protesters were arrested after attempting to overtake the main library.

The university’s interim president quickly condemned the protest action.

Biliana said she made sure to stay far away from these kinds of demonstrations, fearful she might show up in a photo and be falsely linked to the group.

Secretary of State Marco Rubio said officials were reviewing the visa status of the “vandals” involved, adding: “Pro-Hamas thugs are no longer welcome in our great nation.”

For newly elected student body president Oscar Wolfe, “There is definitely a heightened level of anxiety among international students, regardless of their involvement in the protests.”

Wolfe arrived on campus in September 2023, just before Hamas militants launched their 7 October attack on Israel, sparking the Gaza war and giving rise to protests that continue. He said he has known little more than a month of “normal” campus life.

Reflecting the turmoil, Columbia ­— which normally draws thousands of tourists to its Manhattan campus featuring colonnaded buildings, sweeping lawns and famous Alma Mater statue — has largely cut off public access to its grounds.