Top U.S. universities are ditching telecommunications equipment made by Huawei Technologies and other Chinese companies to avoid losing federal funding under a new national security law backed by the Trump administration.

U.S. officials allege Chinese telecom manufacturers are producing equipment that allows their government to spy on users abroad, including Western researchers working on leading-edge technologies. Beijing and the Chinese companies have repeatedly denied such claims.

The University of California at Berkeley has removed a Huawei videoconferencing system, a university official said; the UC campus in Irvine is working to replace five pieces of Chinese-made audio-video equipment. Other schools, such as the University of Wisconsin, are in the process of reviewing their suppliers.