The Shanghai Composite has fallen by more than 8 per cent in intra-day trade, putting the index on course for its biggest one-day drop since 2007.
The Chinese benchmark had been in negative territory all day, but sank sharply in late trade. It's moving fast, but at pixel time, it was down 8.1 per cent at a low of 3,740.9, which puts it on track for the biggest one-day fall since a 8.23 per cent drop on April 6, 2007, writes Peter Wells.
It is the first time the index has fallen by more than 5 per cent in intra-day trade since July 8, when Chinese authorities stepped up their efforts to stop a multi-week rout that had wiped more than $3tn from the value of China-listed companies.