Local police have detained a man in southwest China suspected of disseminating pornographic information involving children on the internet, the Ministry of Public Security has said.

Police in Nanning, capital city of Guangxi Zhuang Autonomous Region, cracked the website run by a man surnamed Liu on June 10.

Liu is accused of posting more than 30,000 porn items on his website, mainly obscene pictures and movies of kids, as well as adult pornographic pictures, films and articles.

Local police seized a computer used to maintain the website in Liu's home as well as bank cards used to collect membership fees.

Liu has confessed to the charges. He said he had raked in over 80,000 yuan (about 10,500 US dollars) in illegal gains from the website's 120,000 registered members.

China has stepped up its anti-pornography efforts in cyberspace since April.

The campaign by the ministry and nine other government departments targets illegal online activities such as distributing pornographic materials and organizing cyber strip shows. It hopes to purge the web of sexually explicit images, stories, and audio and video clips.

By mid-May, Chinese police had cracked 244 cases and detained 270 suspects involved in online pornography, the ministry said.