U.S. President Donald Trump’s administration escalated its feud with Harvard University on Wednesday, declaring the Ivy League school may no longer meet the standards for accreditation and that it would subpoena it for records about its international students.

The Department of Homeland Security issued administrative subpoenas seeking data about the university’s international students, while two federal agencies challenged Harvard’s accreditation.

Homeland Security Secretary Kristi Noem accused Harvard of allowing "foreign students to abuse their visa privileges and advocate for violence and terrorism on campus."