"To Block Aid Organized by Venezuela Opposition, Military Obstructs Highway" is the official headline.
https://michaelsavage.com/to-block-aid-organized-by-venezuela-opposition-military-obstructs-highway/
but i don't see any aid arriving and turning around. i bet it's either to keep people from leaving, keep a neighbor from invading, or something else sinister.
what we know is venezuela is not blocking free goods from entering - that should be obvious