No arrests were made as three men fled into the darkness when they saw the patrol unit at 6.45am on Wednesday.
The patrol spotted the men carrying bags from the riverside to the embankment in Ban Sai Mool in That Phanom district’s Tambon Nam Klam. The men were about 300 metres from the village.
The Navy officers found 210 bricks of marijuana, each weighing one kilogram, in six bags.