The Pentagon has ordered 30 American universities to review their partnerships, primarily with Chinese universities and military educational institutions, warning that they could lose federal funding if they refuse to terminate agreements deemed to pose a threat to national security, the Associated Press reports.

The universities were given two weeks to conduct the audit and end cooperation that authorities consider problematic. The Pentagon said the aim of these measures is to protect research funded by American taxpayers from theft and unlawful use.

“The Department of War will not tolerate academic partnerships that jeopardize our national security,” said Pentagon Chief Technology Officer Emil Michael.

The names of the universities have not been officially disclosed. However, a U.S. official speaking on condition of anonymity said the list includes Harvard University, the Massachusetts Institute of Technology (MIT), and Johns Hopkins University.

The directive came after the Pentagon last month published an updated list of 130 foreign organizations that the department believes engage in activities increasing the risk of unlawful appropriation of the results of research and development funded by the U.S. government.

The overwhelming majority of the organizations on the list are Chinese, including the University of Science and Technology of China and the Academy of Military Medical Sciences of China. The list also includes several institutions from Iran and Russia.

At the same time, President Donald Trump’s administration is stepping up scrutiny of alleged foreign influence on American universities. In particular, the U.S. Department of Justice is investigating whether Harvard provides scholarships funded by Chinese donors under conditions that exclude American students.

The Chinese embassy in the United States opposed Washington’s actions, calling them a politicization of “normal scientific, educational, and academic exchange.”