The State Department issued an increased travel warning Thursday advising U.S. citizens considering travel to China to "exercise increased caution" due to "arbitrary enforcement of local laws."

Background: China has arrested two Canadian citizens in the last month for allegedly endangering Chinese security, though experts tell Axios they were likely detained as a retaliatory measure for Canada's arrest of Huawei CFO Meng Wanzhou. In December, the State Department also issued an increased travel warning for Russia — where an American citizen is currently being held on charges of espionage — due to risk of "terrorism, harassment, and the arbitrary enforcement of local laws."

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