Border officials in Texas say they have intercepted a semi-submersible vessel carrying a whopping 12,800 pounds of cocaine that’s worth more than $200 million.

A team of U.S. Customs and Border Protection agents based in Corpus Christi detected the self-propelled vessel earlier this month and arrested the four people onboard, officials told ABC News.

The sub – which later sank – originated from the “Eastern Pacific Ocean,” the officials added.

In August of last year, the Coast Guard busted a ship carrying 12,000 pounds of cocaine off the coast of Central America, ABC News reports. In the 2015 fiscal year, U.S. border officials said they seized 213,000 pounds of cocaine in operations within the 42 million square-mile area they monitor.

The announcement of the raid comes days after a JetBlue flight attendant was accused of trying to sneak a suitcase full of cocaine through Los Angeles International Airport. In that case, the attendant, who is facing a federal drug charge, "may not have been fully aware of what was in the bags,” her spokesman said.

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