Three people were arrested by police in a suspected drug den in Sham Shui Po in Kowloon on Thursday.

Officers from the special duties unit at Sham Shui Po Police Station raided a flat on Boundary Street at 6pm after getting a tip-off and arrested three non-Chinese people, HK01.com reported.

Police said a 45-year-old man was arrested for alleged possession of illegal drugs and possession of “offensive weapons”, along with a 28-year-old woman and a 35-year-old man arrested for possession of illegal drugs. Their nationalities were not disclosed.

Officers confiscated 14 grams of suspected cannabis, 4 grams of suspected ketamine, plus a small amount of suspected cocaine and heroin in the flat, together with six handmade drug-related devices, which the police described as “hammers”.

The suspected drugs had an estimated street value of HK$10,000 (US$1,279).

Meanwhile, another raid took place at 6pm on a flat at 172 Yee Kuk Street and officers seized 11 kilograms of suspected cannabis resin with an estimated street value of HK$792,000 (US$101,312), Sing Pao reported.

A 22-year-old Pakistani man who is an asylum seeker was arrested in the flat for drug trafficking.