Two men have been arrested after Hong Kong Customs detected a money laundering case involving some HK$48 million in drug proceeds.

The investigation was initiated when customs officers discovered a HK$5 million haul of dangerous drugs and arrested a 24-year-old man in April.

Subsequent investigations revealed numerous suspicious transactions, believed to be drug proceeds, between the arrested man's personal bank accounts and another man from January 2021 to April 2023.

On Tuesday, a 25-year-old man was arrested in Tuen Mun on suspicion of money laundering.

While the 24-year-old man remains in custody, the 25-year-old has been released on bail pending further investigation.

Officers said they would not rule out the possibility of further arrests as the investigation continues.