Pro-Palestinian protest leader arrested at Columbia University

Mahmoud Khalil, a leader of pro-Palestinian protests at Columbia University, was arrested by immigration officers on Saturday. His detention follows U.S. President Donald Trump's pledge to deport foreign students involved in such demonstrations. Khalil, a recent graduate and permanent resident, was a key figure in protests against Israel's actions in Gaza. His arrest has led to a petition for his release, with thousands signing in support. Columbia University confirmed reports of Immigration and Customs Enforcement activity near campus but did not directly address Khalil's arrest. The university stated that law enforcement requires a judicial warrant to enter non-public areas.