Narcotics Bureau officers on Saturday arrested a 29-year-old man on suspicion of trafficking in dangerous drugs, following an operation in Tin Shui Wai.

The suspect was arrested outside a residential building on Tin Tsz Estate.

Police allege about four kilos of suspected heroin, with a street value of over HK$3 million, were found in the man's hotel room, along with drug packaging tools and materials.