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

The university said in a campus-wide email that a judicial board brought a range of sanctions against students who occupied Hamilton Hall last spring to protest the war in Gaza.

Columbia did not provide a breakdown of how many students were expelled, were suspended or had their degrees revoked, but it said the outcomes were based on an “evaluation of the severity of behaviors.”

The culmination of the monthslong investigative process comes as the university is reeling from the arrest of a well-known Palestinian campus activist, Mahmoud Khalil, by federal immigration authorities last Saturday. President Donald Trump has said the arrest would be the “first of many” such detentions.

At the same time, the Trump administration has stripped the university of more than $400 million in federal funds over what it calls a failure to combat campus antisemitism. Congressional Republicans have pointed specifically to a failure to discipline students involved in the Hamilton Hall seizure as proof of inaction by the university.