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MIAMI (CBSMiami/AP) — Guns and thousands of rounds of ammunition hidden in a shipment of what looked like car batteries bound for Venezuela was seized at Miami International Airport by U.S. Customs and Border Protection agents.

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Customs agents discovered the shipment, originally from Maracaibo, Venezuela, in April. It was was addressed to a Miami resident.

The Miami address was placed under surveillance, and agents saw several suspects delivering handguns to the site.

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According to court documents, investigators saw the suspects moving the guns and ammo from the property to a shipping company.

The court documents say the shipment was being sent to Venezuela.

Two men, Jose Alexander Gutierrez Morales and Alfredo Montilla Hernandez, are facing charges in the case.

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