Customs officers have arrested four women after finding 2.5kg of cocaine worth $3.1 million at the airport.
Officers found the drug in false compartments in two suitcases two women carried from Manila on September 25.
They have arrested another two women who tried to leave Hong Kong airport this morning.
The four women, aged 29 to 46, will face drug trafficking charges at Tuen Mun Magistracy tomorrow.
This is the second dangerous drug trafficking case of a similar nature detected by airport Customs within a week.