Between 4/6 to 10/6 13 people suspected to be with the link with gang-related activities have been arrested in operations.
Suspects aged between 16 and 49 has been nabbed by officers from CID and Jurong Police Division.
Last Sunday at Block 483 Choa Chu Kang Avenue 5 authorities were first alerted to a gathering of secret society members at a wake and funeral procession.
Chanting of secret society slogans at Mandai Crematorium were also received.
Police take a very stern view of gang-related activities, tough enforcement efforts and come down hard on those who choose to be associated with gangs and their activities.
Under the law, anyone convicted of being a member of an unlawful society can be fined a maximum of $5,000 or jailed up to three years, or both