Index of big Shanghai, Shenzhen firms tumbles

Shanghai

CHINESE shares fell on Tuesday as Beijing scrambled once again to prop up a stock market, the wild gyrations of which have heightened fears about the financial stability of the world's second biggest economy.

After a plunge of more than 8 percent in major indexes on Monday, Chinese regulators said they were prepared to buy shares to stabilise the stock market, while the central bank injected cash into money markets and hinted at more monetary easing.