The two men aged 34 and 45 were picked up with almost 5kg worth of marijuana on them.
Both men are in Boroko police custody.
Meantime, two more Goilala youths aged 17 and 16 were picked up at the 5 mile Jack Pidik park with 1kg of marijuana later in the afternoon.
The two youths are also now at the Boroko police station.
All the men will be charged with drug possession and intent to sell.