SHANGHAI (REUTERS) - China Financial Futures Exchange (CFFEX) has suspended 19 accounts from short-selling for one month, sources with direct knowledge said on Friday.

The move came after China's securities market regulator launched an investigation into suspected market manipulation, citing evidence from the CFFEX and stock exchanges. The stock market has slumped more than 20 per cent since mid-June.

A spokesman at the exchange said trading in index futures remained normal when asked to comment.

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