China's publication watchdog has urged customs agencies to intensify inspection of "harmful publications" to stop such items from entering the country.
At some key customs checkpoints, all luggage should undergo checks and suspicious cases should be opened for inspection, according to a circular issued after a meeting on Monday held by the the National Office Against Pornographic and Illegal Publications in the southern city of Zhuhai.
The meeting was part of the "Nanling Project," which from 2010 and has cracked down on harmful publications. The circular did not give a definition of such targets.
Harmful publications and publishing practices should be investigated and curbed, and customs supervision is the first defense in the campaign, the circular said.
According to the circular, the campaign previously has seven provincial-level region members -- Guangdong, Beijing, Shanghai, Fujian, Hunan, Anhui and Jiangxi, and this year, they were joined by five other regions-- Jiangsu, Zhejiang, Hubei, Guangxi and Hainan.