SINGAPORE - Police have arrested 13 people suspected of gang-related activities in operations between last Sunday (June 4) and Saturday (June 10).

Officers from the Criminal Investigation Department and Jurong Police Division were involved in nabbing the suspects aged between 16 and 49.

The authorities were first alerted to a gathering of secret society members at a wake and funeral procession last Sunday at Block 483 Choa Chu Kang Avenue 5.

They had also received information about the chanting of secret society slogans at Mandai Crematorium.

In a statement released on Saturday night, police said it takes a very stern view of gang-related activities, adding that police "will continue with tough enforcement efforts and come down hard on those who choose to be associated with gangs and their activities".

Investigations and operations are ongoing to identify and arrest other offenders, the statement said.

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.