Police in South Korea are cracking down on an American pantry favorite: Trader Joe’s Everything but the Bagel seasoning.

Authorities have begun blocking sales of the popular seasoning on an online secondhand marketplace after testing detected “narcotic substances” in the product, according to The Korea Herald.

The Mapo Police Station in Seoul said this week that it identified listings for the seasoning blend on Karrot, a major secondhand marketplace, and worked with the company to block transactions involving the product. Police said travelers are prohibited from bringing the seasoning into South Korea.

Trader Joe’s savory seasoning blend…

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