Multiple significant instances of insider trading and malicious manipulation of the securities and futures markets, involving approximately 9 billion yuan（$1.26 billion), were uncovered in a recent operation targeting key cases in the securities sector.

As outlined in a statement issued by the Ministry of Public Security on Friday, the ministry and the China Securities Regulatory Commission had jointly coordinated subordinate departments to carry out the operation.

The statement reported the apprehension of over 50 criminal suspects and the seizure of more than 180 electronic devices, including mobile phones and computers involved in the crimes.

This operation effectively dismantled multiple criminal networks engaged in illegal securities activities, and also upheld the order in the capital market and safeguarded the legitimate rights and interests of investors, according to the statement.