Beijing on Wednesday (April 10) urged Washington to withdraw its travel advisory for China, calling it “totally unreasonable” and a stumbling block for cross-cultural exchanges.

The remarks from China’s foreign ministry came after U.S. Deputy Secretary of State Kurt Campbell on Tuesday (April 9) acknowledged concerns that the warnings may have curtailed exchanges between American and Chinese people.

The State Department has periodically issued tiered warnings for Americans traveling to China, calling on them to reconsider visits or exercise increased caution due to risks of "arbitrary enforcement of local laws," exit bans and wrongful detentions.

China has issued its own travel warnings for the U.S., and criticized what it says is increasing harassment of Chinese nationals by U.S. agents at ports of entry, accusations U.S. officials have rejected.

(Production: Wang Shubing, Xihao Jiang)