The suspects were caught by police during a road block at Eight-Mile in Port Moresby after traveling along the Hiritano Highway from Tapini on a PMV.
Gordon’s police confirmed that the men and woman were carrying dried marijuana stuffed in three 50kg bags of vegetables.
Police say they had walked from their village in Goilala before getting on the PMV along the highway.
The drugs were taken to the Gordons Police Station along with the criminals before they were brought to the drug unit to be weighed.
The suspects are now in police custody.