Chinese state media reports a financial journalist has "confessed" to causing panic and disorder on China's stock market and inflicting "huge losses on the country".
Wang Xiaolu, a journalist with Caijing magazine, was detained by Chinese authorities following China's recent stock market crash.
State-run news agency Xinhua on Sunday (local time) reported Wang was held for fabricating and spreading fake information on securities and futures market.
According to the report, Wang "confessed" that his "false information" had "caused panics and disorder at [the] stock market, seriously undermined the market confidence, and inflicted huge losses on the country and investors".
Wang wrote a story in July saying the securities regulator was studying plans for government funds to exit the market.
The China Securities Regulatory Commission quickly denied the Caijing story, labelling it "irresponsible".
But Caijing said it "defended journalists' rights to do their duty under the law", according to a statement posted on its website.
Xinhua reported that authorities had also detained an official from China's securities watchdog and four senior executives of the country's major securities dealer for "stock market violations".
Liu Shufan, an official with the CSRC was held on suspicion of insider dealings, taking bribes and forging official seals, said the report.
Liu "confessed" that he has forged official seals to fake a court ruling on divorce and taxation certificates for his mistress.
Chinese state media regularly carries what it presents as confessions of suspects in high-profile cases.
Formal arrest in China normally comes after some time in police detention, when the case is handed to prosecutors, with trial and conviction almost guaranteed.
The news agency also reported that 197 people have been punished in a special campaign by Chinese police targeting online rumours about China's stock market, the recent fatal explosions in Tianjin and "other key events".