The Cyberspace Administration of China, the country's top cyber authority, demanded that major technology companies in China perform "immediate cleaning and rectification" of their platforms to remove content considered insulting to the Communist Party and the country's national image, Reuters reports.

The CAC held meetings with companies including Internet giant Tencent (TCEHY) , Internet search provider Baidu (BIDU - Get Report) , and Internet services company Sohu.com (SOHU - Get Report) . Each was given a list of specific errors they had made.

The infractions include misrepresenting Chinese history, publishing fake news, misunderstanding policy orders and failing to block content that undermines public stability.

"[The sites] must adhere to the correct political line and moral norms," the CAC said.

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