The FBI is reportedly barring some Chinese academics from entering the U.S. over their suspected connections to Chinese intelligence, The New York Times reported.

At least 30 professors from China who focus their work on social sciences and experts on government policy have had their U.S. visas reviewed or canceled in the past year. The FBI reportedly believes that China is using visiting academics to spy on U.S. citizens.

The Trump administration has focused substantial efforts to crack down on intellectual property theft by China.

Read the full report here.