Customs officers found 497.9 kg of marijuana in a refrigerated truck with Bulgarian plates at the Kulata border checkpoint. The check took place early on 10 November, Customs Agency deputy director Stefan Bakalov and prosecutor Irina Asparuhova, spokeswoman for the Blagoevgrad District Prosecutor's Office, told a briefing.
Bakalov said it is the biggest haul of marijuana found at Kulata since the start of the year.
Officers from the anti-drug trafficking unit of the Sofia Customs Directorate chose a tractor unit with a refrigerated semi-trailer for a check. The driver showed papers for sausages and peppers loaded in Spain and meant for buyers in Bulgaria.
An X-ray showed a partition wall inside the trailer. Behind it, officers found 22 boxes of marijuana.
The driver, a 51-year-old man from Plovdiv, was held for 72 hours.
The Blagoevgrad District Prosecutor's Office is leading and supervising the pre-trial investigation into the smuggling of nearly 500 kg of marijuana.