Regional units are already reeling from expectations of a hike in US interest rates later this year, which analysts say could trigger an outflow of capital from emerging markets to seek higher returns.
China's keenly watched Purchasing Managers' Index (PMI) for factory activity in September fell to its lowest level since March 2009, the latest round of weak data following disappointing readings including on trade, investment and consumer spending.
Dutch bank ABM Amro said, “weak PMI reignited market worries that the slowdown in China may be more pronounced".
As the world's second biggest economy, China is a key engine for global economic growth and any sign of weakness there impacts on world markets.


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