A newly released video shows the moment federal immigration agents arrested Mahmoud Khalil, a prominent Palestinian activist whose detention has sparked waves of protest across the country.

Federal agents arrested Mahmoud Khalil, a Palestinian student who played a major role in last year's protests at Columbia University, students said.

Federal agents searched two student residences at Columbia University, its interim president said, a week after immigration agents detained Mahmoud Khalil, a leader of last year's campus protests, who the Trump administration wants to deport.