China on Thursday called the U.S.'s attack against Huawei a "dirty trick" as the U.S. and other Western countries exclude the Chinese telecom giant from building 5G networks. "I think the actions of the U.S. have nothing to do with the word 'clean.' What it is actually doing is a real 'dirty trick,' 'dirty play,'" Hua Chunying, Chinese Foreign Ministry spokesperson, said.