The Chinese authorities are pressing ahead with their unprecedented crackdown on illegal activities in the domestic stock market.

It was reported that the Ministry of Public Security recently arrested two executives from a Hong Kong-owned fund for irregular futures trades and it was investigating Xu Xiang, general manager of Shanghai-based company Zexi Investment, for suspected insider trading.

The former case marks the first public arrest linked to a non-mainland fund and the latter involves a top private equity investor who reportedly managed funds of tens of billions of yuan.