Internet companies in China were urged to strengthen self-discipline and prevent the spread of online rumors, which has become a public nuisance seriously infringing people's interests, national security and social stability.
Internet companies should obey laws and industrial self-disciplinary rules to resist online rumors, the Internet Society of China said in a written proposal on Sunday.
China's two major Internet portals, www.sina.com and www.qq.com, have been criticized and punished by Internet information administration authorities for allowing the spread of online rumors and other illegal information.
The comment functions of the two portals' microblogging sites, weibo.com and t.qq.com, were also suspended for four days to clean up rumors and other illegal information spread through them.
Chinese authorities have closed 16 websites for "fabricating or disseminating online rumors" particularly through microblogging posts.
Beijing police have arrested 1,065 suspects and deleted more than 208,000 "harmful" online messages as part of an intensive nationwide crackdown on Internet-related crimes conducted since mid-February.