Internet users are raging against the anonymous author of a blog they say insults Chinese with accounts of a British teacher's supposed sexual exploits with Shanghai women.

The English-language blog, called "Sex and Shanghai," is now inaccessible; attempts to access it draw a message saying it's for invitation only. It features lurid descriptions of sexual encounters and derogatory comments about Chinese men and society.

It provoked an uproar and vigilante calls for the author, who uses the cyber-name "Chinabounder," to be hunted down and expelled from the country.

"Chase down the foreign scoundrel on the Internet," Zhang Jiehai, a professor of psychology at the Shanghai Academy of Social Sciences, wrote in an essay posted on his own Chinese-language blog.

Numerous reader postings on Zhang's blog supported his call for a manhunt.

Shanghai, one of China's most cosmopolitan cities, has a foreign population in the tens of thousands, many of them students and language teachers. Intimate relations between locals and foreigners have grown increasingly common, but reports of racial tension are rare.

China has quickly developed the world's second-largest population of Internet users after the United States, with more 123 million people regularly going online.

Editor: Wing