Officials have announced that customs officers discovered gold bars and nuggets worth nearly $68,000 hidden inside a shipment of clothing.

The shipment, sent from San Francisco and bound for Hong Kong, was seized after the discovery.

The Customs and Border Protection (CBP) officers found the hidden gold while using a routine X-ray exam of cargo at the Port of Cincinnati on Thursday.

The X-ray showed that the density of the cargo didn’t match what they would expect in a shipment of just clothing.

Officers opened the shipment and found gold bars, along with a box of loose gold.

Upon examination, experts found that the gold was 98% pure, making it worth just under $68,000.

The shipment in question was declared to only have a value of $125. Exporters are required by law to inform CBP when a shipment’s value is more than $2,500 so they can ensure compliance with export laws.

For exporters who ignore or file inaccurate information, they can face civil or criminal penalties. Officials have not said what penalty the owner of the shipment faces.