Thieves with a huge sweet-tooth have driven off with 18 tons of chocolate in Austria.

State broadcaster ORF says on its website that the driver of a Slovak tractor trailer loaded the 33 pallets of milk chocolate onto his vehicle from the producer in the western town of Bludenz earlier this week — supposedly to deliver an order from a company in the Czech Republic. But, police in the westernmost province of Vorarlberg say that the license plates and papers of the Slovak truck and driver were apparently counterfeit.

The trip should have taken less than a day, but as of Friday — four days after the truck was loaded — the delivery was still outstanding.

Police are investigating.