Deng Senshan, 15, was pronounced dead early Sunday, one day after his parents sent him to Qihang Salvation Training Camp in the southern city of Nanning to cure his Internet obsession, the state-run . The camp's counselors put Deng in solitary confinement after he arrived, scolded him for running too slowly and later beat him to death, the paper cited Deng's father as saying.

Police detained four suspects over the beating and are still investigating the case, the report said.

Government-subsidized treatment camps for Internet obsession have in recent years as the condition, widely blamed on online games like World of Warcraft, has been labeled as harmful to family relationships and performance in school. Students at the camps are often tricked into going by their parents and are put through strict regimens including boot camp-style military drills.

Some of the camps have also used shock treatment to treat Internet addiction, but China last month.

Deng's father found the boy's body at a local hospital after police notified him of the death, reports said. The head of the Nanning camp denied Deng had been beaten and told his father he was sent to the hospital only because of a serious fever, the local newspaper Global Times cited the father as saying.