Harvard University won a temporary court order blocking the Trump administration from preventing the school from enrolling international students.
US District Judge Allison Burroughs ruled that the US government cannot enforce its directive imposed a day earlier.
The Trump administration's move to block Harvard from enrolling international students delivered a major blow to the university and escalated the government's fight with elite colleges.
Harvard will not have to immediately stop enrolling international students, affecting about 27% of the student body, after Friday's ruling.