(Portland, OR) -- The University of Oregon is looking for answers after the Department of Homeland Security terminated the visa of one of its students without any prior notice. The university says DHS revoked the international student's F-1 visa on March 28 without notifying university officials and without giving any reason as to why. The university is required to inform students when their visa status is revoked but cannot do so if they are not informed. The move comes amid the Trump administration's crackdown on and detainment of international students who participated in pro-Palestine protests on college campuses.