US fears for its citizen travelling to China, issues advisory for caution

The U.S. State Department on Thursday warned U.S. citizens travelling in China to exercise increased caution due to "arbitrary enforcement of local laws."

The updated travel advisory follows the detention over the past month or two Canadians in China, who said they were suspected of harming China's security. The two were detained after Canadian police arrested Huawei Technologies Co Ltd's chief financial officer Meng Wanzhou on Dec. 1 in Vancouver, at the request of the United States.