A federal judge has halted President Donald Trump’s latest attempt to block international students from coming to Harvard University. The temporary restraining order issued late Thursday by US District Judge Allison Burroughs came hours after the university urged the judge to step in on an emergency basis to block a proclamation Trump signed a day earlier that suspends international visas for new students.

President Donald Trump has escalated his standoff with Harvard University, seeking another path to prevent international students from attending the school after a judge blocked an attempt to revoke Harvard’s ability to enroll international students.