Mahmoud Khalil, a recent Columbia graduate who is Palestinian, was detained by the Department of Homeland Security almost one week ago. Since then, Khalil, who is in the United States on a green card,

Mr. Khalil, who helped lead protests at Columbia University against civilian casualties in Gaza, was arrested by immigration officers and sent to a detention center in Louisiana.

Palestinian protests at Columbia University will remain detained in Louisiana following a brief Wednesday court hearing.Judge Jesse Furman said he would grant a request by Mahmoud Khalil's lawyers allowing them to have privileged phone calls with Khalil at least twice — today and tomorrow.