May 28 (UPI) -- U.S. Secretary of State Marco Rubio announced Wednesday that they will work to "aggressively revoke" visas of Chinese students, including those with ties to China's communist party studying in so-called critical fields.

The State Department will work with the Department of Homeland Security on the visa revocations, Rubio said in the two-sentence press release, which also announced that the Trump administration "will also revise visa criteria to enhance scrutiny of all future visa applications from the People's Republic of China and Hong Kong."

No reason was given but it comes as the Trump administration has been cracking down on immigration and targeting universities over alleged anti-Semitism, moves that have sent shockwaves through the higher education system.

The visa changes could potentially affect university pocketbooks. There are more students from China studying at U.S. universities than colleges than from any other country aside from India, according to U.S. statistics.

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