With no signs of support from the People's Bank of China on the weekend, the world's second-largest equity market is close to free-fall at the start of trading.
The Shanghai Composite fell 5.7 per cent to 3,364 in the first 10 minutes, falling below the key 3,500 mark to its lowest intraday level since February.
The Shenzhen Composite fell 6.2 per cent to 1,948, the lowest since July 9.
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