Police said a national from the Dominican Republic was among three persons held on Sunday night in Cunupia after over 100 kilogrammes of marijuana was discovered.
The find was made by officers of the North Eastern Divisional Gang Intelligence Unit led by Insp Sunil Bharath and Sgt Mitchell.
Loop News was told that officers made their way to High Street, Siparia, where they had cause to stop and search a white Nissan Panel van.
Over 70 packages containing what appeared to be compressed marijuana were found and seized in the vehicle.
All three occupants were arrested as a result.
The operation was coordinated by Snr Sup Maharaj, Sup Alexander, Sup Ramjohn, and ASP Beharry.