A series of immigration enforcement actions at Columbia University has triggered widespread concern among international students and faculty across American higher education institutions, according to multiple reports published March 15, 2025.

The Department of Homeland Security has confirmed three significant enforcement actions at Columbia University in the past week:

The arrest of Mahmoud Khalil, a Palestinian activist and graduate student with legal permanent resident statusThe arrest of Leqaa Kordia, a Palestinian former student, for visa violationsThe visa revocation of Ranjani Srinivasan, an Indian doctoral student, leading to self-deportation

DHS agents also conducted searches of two additional on-campus residences Thursday, though no arrests were made [1].

Columbia's Graduate School of Journalism has reported an 'alarming chill' among its international student population, with many avoiding classes and campus events [1]. The school's dean, Jelani Cobb, warned international students about their vulnerability, stating 'Nobody can protect you, these are dangerous times' [2].

The impact extends beyond Columbia. At the University of California, Irvine, law professor Veena Dubal reports that international faculty members are 'absolutely terrified' about their immigration status, leading to reduced academic discourse and research publication [3].

Universities nationwide are responding to the situation. The University of California, Davis has updated its guidance for international students regarding First Amendment rights and potential immigration consequences of political activity [4].

Secretary of State Marco Rubio indicated Friday that more visa revocations are likely in the coming days, while President Trump has stated these actions are 'the first of many' [1].