Columbia University says it has expelled or suspended some students who took over a campus building during pro-Palestinian protests last spring, and had temporarily revoked the diplomas of some students who have since graduated.

Columbia University says it has expelled or suspended some students who took over a campus building during pro-Palestinian protests last spring, and had temporarily revoked the diplomas of some students who have since graduated.

Columbia University on Thursday said it had doled out a range of punishments to students who occupied a campus building last spring during pro-Palestinian protests.

In February, the House Committee on Education and Workforce sent a letter to Columbia’s interim president, Katrina Armstrong, and Columbia’s board chairs, David Greenwald and Claire Shipman, listing “numerous antisemitic incidents” that it said had taken place in the last two academic years.

Mahmoud Khalil, a 29-year-old legal resident of the United States, was arrested and detained by federal agents Sunday, after his green card was revoked by the Trump administration.

Immigration enforcement agents on Saturday arrested and detained Mahmoud Khalil, a legal U.S. resident and Palestinian activist.

Former Columbia University student activist Mahmoud Khalil remains in an immigration detention center in Louisiana. Protesters nationwide are calling for his release, saying the federal government is violating his First Amendment rights by seeking to deport him amid the White House's crackdown on students and alleged "agitators" protesting Israel's war with the terror group Hamas.

The arrest and threatened deportation of a student activist at Columbia University is a threat to free speech on campus and across the U.S., says professor Michael Thaddeus.

Columbia University says it has expelled or suspended some students who seized building during pro-Palestinian protest