In operation Sahara, police and immigration department targeted illegal immigration and related offenses.

The arrested included 12 local men and 3 local women aged between 28 and 63, as well as 19 non-Chinese men and 17 non-Chinese women aged between 26 and 57. They were arrested for drug trafficking, fraud, theft, breaching conditions of stay, illegal entry and overstaying, among other offenses.

All of them were detained for investigations.

Among the arrested, nine were involved in drug-related offenses. Officers seized HK$23,000 worth of drugs, including 4.87 grams of suspected ice and 86 grams of cannabis.

Police also intercepted several people delivering takeaways and found six non-Chinese men to have accepted the jobs using identities of others or fake information. They were arrested for fraud, theft and breaching conditions of stay.

Around 300 officers, including those from police tactical unit and police dogs, arrived at the building around 6pm yesterday. They cordoned off the building with tape and closed the gate of the building.

A number of residents stood at the entrance of the building as officers refused to let them out. Residents who wish to enter the building had to present identity proof as officers set up checkpoints at different entrances.