Columbia University says it has expelled or suspended some students who took over a campus building during pro-Palestinian protests last spring and 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. The announcement came a week after President Donald Trump's administration announced that it had canceled $400 million in federal grants and contracts in response to what it said was the Ivy League school's poor response to antisemitism on campus.

Federal agents from the Department of Homeland Security raided two Columbia University dorm rooms Thursday night, the school said in a statement. Why it matters: The news comes days after federal agents arrested Mahmoud Khalil,

Law enforcement sources tell ABC News that agents from Homeland Security Investigations were looking for at least one woman who was not home at the time when they showed up with search warrants.