Huawei files lawsuit against U.S. government

Chinese tech giant Huawei on Thursday said it is suing the United States over a law introduced last year that bans government agencies from buying its equipment. 

Huawei in a statement said it has filed a complaint in a U.S. district court in Texas challenging the U.S. National Defense Authorization Act (NDAA), which mentioned Huawei and ZTE by name.

The firm argues the restrictions targeting it are "unconstitutional".