Columbia University students who refuse to end their protest against Israel's war in Gaza say university officials have threatened to bring in the National Guard and police to sweep their encampment.

It comes after Columbia authorized the New York Police Department to arrest more than 100 pro-Palestinian student demonstrators who had camped out on Columbia's main lawn to protest the war and demand their school divest from companies with ties to Israel.

The student protesters said they would not engage in negotiations with the university "until there is a written that the administration will not be unleashing the NYPD or the National Guard on its students" in a statement shared on X, formerly Twitter, by Columbia's chapter of Students for Justice in Palestine.

"Throughout history, we have seen peaceful protesters violently repressed and attacked by the National Guard: from Black Lives Matter protesters in Ferguson, Missouri, to students protesting the Vietnam War at Kent State in Ohio, who were brutally beaten and murdered for peacefully speaking out against war and destruction," the statement said.

"It is disturbing that Columbia is joining their ranks in history—but we are undeterred in our commitment to Palestinian liberation."