Prosecutors have indicted a South Korean man on charges of smuggling ancient pottery from North Korea.

The man, identified only by his surname Cho, works at the Gaesong Industrial Complex and is suspected of smuggling six ceramic artifacts between September and November of last year.

Prosecutors say that Cho got the pottery, presumed to date back to the ancient Goryeo Dynasty, from a North Korean worker at the complex, identified by his surname Park. The North Korean is said to have asked Cho to sell the pieces in South Korea.

North Korean authorities confirmed that Park gave the pottery to Cho, and that they recovered it before notifying the South’s Unification Ministry.

A prosecution official said there's no way to know the value of the smuggled goods as North Korean authorities had confiscated them.