In light of "anti-China crazed behavior on the part of Vietnam," the Chinese Foreign Ministry and Public Security Ministry have decided to abrogate a visa agreement with Vietnam.

China's Ministry of Public Security weighs what to do with Chinese Koreans who joined the Korean People's Army and now wish to restore their PRC citizenship.

The 4th Bureau of China's Public Security Ministry records that there are growing waves of illegal border crossings among ethnic Koreans in the area of Andong, Liaoning Province.

Report on closure of Soviet consulates, worrying activities of the consulates, and plans for the exit of Soviet nationals from China.

A report on the work of the Chinese Foreign Ministry and Public Security Ministry in collecting evidence of Soviet wrongdoing in Xinjiang.

The Chinese Foreign Ministry and Public Security Ministry claim success in uncovering evidence of illegal Soviet activities in Xinjiang.

The Chinese Foreign Ministry and Public Security Ministry report on political developments in Xinjiang since the mass exodus of citizens to the Soviet Union.

The Chinese Government is collecting evidence against the Soviet Union in light of the Yi-Ta incident.

The Chinese Government forbids citizens in Xinjiang from traveling to the Soviet Union.

The official Protocol in Safeguarding National Security and Social Order in Border Areas between China and North Korea outlines each country's responsibilities in regulating border crossings.