Some 768 kg of hash oil were hidden aboard a truck behind vegetables and fruit. The driver, a Lithuanian national, has been detained.
The operation took place on Sunday, the Customs Criminal Service told BNS.
"According to preliminary information, this can be the largest amount of drugs seized in the history of Lithuania," Gediminas Kulikauskas of the Customs Criminal Service told BNS.
The rough value of the drugs on the black market is 23.5 million litas (EUR 6.8m).
The authorities believe that the drugs were bound to reach the Netherlands from Lithuania via Belarus.
