The Trump administration said on Tuesday that Columbia University was “refusing to help” the Department of Homeland Security identify people for arrest on campus, after immigration authorities detained a prominent Palestinian activist and recent Columbia graduate over the weekend.

The Trump White House’s press secretary, Karoline Leavitt, said on Tuesday the administration had given the university names of multiple individuals it accused of “pro-Hamas activity”, reiterating the administration’s intention to deport activists associated with pro-Palestinian protests.

“Columbia University has been given the names of other individuals who have engaged in pro-Hamas activity, and they are refusing to help DHS identify those individuals on campus,” Leavitt said in a press briefing. “And as the president said very strongly in his statement yesterday, he is not going to tolerate that.”