Border guards in the central province of Quang Tri on Thursday night caught three people smuggling 79.3 kilograms of explosives.
The suspects, a 21-year-old woman and two men aged 41 and 57, were riding a motorbike, carrying three bags of TNT explosives near La Lay Border Gate.
The trio said they were transporting the explosives to illegal gold miners in the area and the neighboring province of Thua Thien-Hue.
Further investigations are ongoing.