It urged netizens and web site staff to be self-disciplined and prevent the postings and dissemination of such images by pledging not to download, spread or speculate on the photos.
So far, more than 40 domestic websites have supported the statement and many Chinese netizens have pledged not download or spread the Chen photos.
In addition, Chinese Internet search engine Baidu.com has been asked by a Beijing Internet self-discipline organization to make a public apology for spreading the photos.
The Beijing Internet News Information Review Council, initiated by the government-sponsored Beijing Association of Online Media, issued a statement on Monday criticizing the Nasdaq-listed web site's conduct in relation to the photos.
The statement meanwhile praised other big mainland websites, including Sohu.com, Sina.com and Netease. Those sites had called for Internet users "not to download, save and spread the photos" and "to prevent the photos from falling into the hands of children".
