Immigration officers have arrested a leader of the protests at Columbia University against Israel's war in Gaza, authorities said Sunday, after US President Donald Trump vowed to deport foreign pro-Palestinian student demonstrators.

Mahmoud Khalil, one of the most prominent faces of the university's protest movement that erupted in response to Israel's conduct of the war, was arrested on Sunday, the Department of Homeland Security (DHS) said on X.

The agency said the action was taken "in support of President Trump's executive orders prohibiting anti-Semitism, and in coordination with the Department of State."

The Student Workers of Columbia Union said in a statement that Khalil had been detained on Saturday,........

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