Police believe they have smashed two triad gangs after an eight-month undercover operation that ended in a series of raids on Sunday and Monday with the arrest of 29 people.
Six Pakistanis among the arrested men were suspected members of the Wo Shing Wo triad, active in Yuen Long, according to police.
“Investigations showed that members of this gang were hired attackers,” a police officer said.
“We suspect they were involved in a number of wounding cases and illegal gatherings in the district. We are still looking for other members of the gang.”
The other suspects were alleged members of the 14K triad society, who were active in Yuen Long and Tin Shui Wai.
The New Territories North regional crime unit began investigating the two gangs in March, deploying undercover policemen to identify the gangsters and collect evidence.
After the eight-month undercover operation, codenamed Coldwind, more than 120 officers conducted a series of raids in Yuen Long and Tin Shui Wai on Sunday and Monday.