A customs official says the tusks were discovered on Tuesday hidden in dried seaweed in a container that arrived at the port on April 28. The official declined to be named due to policy prohibiting junior officers from speaking to the media.
The official said Thursday the shipment was bound for neighboring China.
Haiphong authorities confiscated nearly 7 tons of elephant tusks last March smuggled from Tanzania — Vietnam's biggest-ever seizure of tusks.
Tusks are used for ivory jewelry and home decorations.