Police in the southern Chinese city of Shenzhen said Tuesday they had detained 130 telecom and online fraud suspects in a case involving the infringement of citizens' personal information.

In November, police found that bank and mobile cards, as well as citizens' personal information, had been sold by individuals online.

According to the police, selling bank cards can enable the scammers to get into the accounts of the victims and use their money, and through phone calls, the suspects can steal money and personal information from the victims.

After an investigation, the police caught the suspects in 70 dens in Shenzhen on Dec. 10, confiscating 20,000 phone cards.