Tags: Shanghai

China's markets regulator has suspended a trading account of U.S.-based hedge fund Citadel LLC, the fund said on Monday, in the watchdog's first known move against a big foreign investor as it battles to prop up China's ailing stock markets.

The Shanghai branch of China's central bank has ordered commercial lenders to check for risks in their margin trading business, according to a memo obtained by Reuters.

Chinese police have frozen two bank accounts held by Trafigura, one of the world's three largest private oil and metals traders, as the authorities investigate an alleged $32 million gasoline trade fraud, according to three sources.