Tufts University graduate student Rumeysa Ozturk, a Turkish national, was detained by federal immigration authorities late Tuesday, according to her attorney and activists.

Secretary of State Marco Rubio suggested Tufts PhD student Rumeysa Ozturk's visa was revoked over her pro-Palestinian activism — though he gave no evidence it was anything more than an op-ed in the Tufts student newspaper.

The U.S. Department of Homeland Security accused Ozturk, a Turkish national, of "activities in support of Hamas."