Federal immigration authorities arrested a Palestinian activist Saturday who played a prominent role in Columbia University's protests against Israel, a significant escalation in the Trump administration's pledge to detain and deport student activists.

U.S. immigration agents arrested a Palestinian graduate student who has played a prominent role in pro-Palestinian protests at New York's Columbia University as part of U.S. President Donald Trump's promised crackdown on some anti-Israel activists.

A prominent Palestinian activist who helped lead last spring's protests at Columbia University is facing deportation following his arrest by federal immigration agents over the weekend.