A group of protesters gathered outside the Northwest State Correctional Facility in Swanton on Wednesday to rally for the release of a Columbia University student detained by Immigration and Customs Enforcement agents in Colchester.

Mohsen Mahdawi, a Palestinian green card holder, went to an immigration office in his home state of Vermont on Monday to take the final step to becoming a U.S. citizen. Instead, he was arrested by Homeland Security officials, his lawyers and three Vermont lawmakers said.