Prefectura Naval Argentina officers seized 319 bricks of marijuana weighing more than 280 kilograms on the Paraná riverbank in Puerto Rico, Misiones, during the early hours of 2 July 2026.[1] Officers also seized the rowboat used to carry the load across the river.[2] When officers arrived they found the boat and nine packages abandoned on the shore.[2] The boat’s sole occupant fled before being identified, and no one was detained.[3]

Prefectura intelligence work had warned of a possible entry of marijuana from Paraguay via the Paraná River.[1] From an observation post at Arroyo Mbopicua, prefecture staff watched a rowboat with one occupant aboard cross toward the Argentine bank carrying several bundles.[2]

The Federal Court and Federal Prosecutor’s Office in Oberá took charge of the case and ordered the seizure of the drugs and the boat.[3] The authorities valued what was seized at more than 1,000 million pesos.[1]