Mexican navy seizes ‘narco sub’ carrying 3.5 tons of cocaine off Guerrero coast


Summary

Mexican navy intercepts 'narco sub'

Authorities seized a low-profile vessel carrying more than 3.5 tons of cocaine off the coast of Guerrero. Three foreign nationals were taken into custody.

Major drug bust valued at $43 million

The cocaine seizure is estimated to be worth $43 million, bringing the total drug seizures under Mexican President Claudia Sheinbaum’s government to 44.8 tons.

Second major seizure involves meth labs

In a separate operation, nearly 42 tons of methamphetamine worth over $50 million were discovered during raids on illegal drug labs, according to CBS News.


Full story

They’re nicknamed “narco subs” — and the Mexican navy just sunk their hopes of distributing drugs in the United States. Mexico’s Security Secretary, Omar García Harfuch, posted on social media on Friday, June 27 that the navy seized the sub off the coast of Guerrero.

According to the Navy, the submarine was carrying over 3.5 tons of cocaine. García Harfuch said the seizure totaled the equivalent of $43 million. Three foreign nationals were also taken into custody. This takes the total seizures by Mexican President Claudia Sheinbaum’s administration to 44.8 tons of cocaine.

Sheinbaum took office in October 2024. United States President Donald Trump offered at the beginning of his second term to send troops to Mexico to help them stop drug trafficking. Sheinbaum declined the offer.

Mexican authorities posted video of Friday’s seizure, as well as pictures of the drugs on their social media account.

Massive recent methamphetamine bust 

Mexican authorities also recently made a massive seizure on land. CBS News reported nearly 42 tons of methamphetamine worth more than $50 million were discovered during raids on illegal drug labs.

What is a ‘narco sub’?

Most narco subs intercepted by law enforcement are not true submarines and cannot dive beneath the surface, according to the think tank Insight Crime. Instead, these vessels, known as low-profile vessels or LPVs, ride just above the waterline, making them difficult to detect.

Typically about 15 meters long, LPVs are built with a narrow, elongated shape and powered by diesel or gasoline engines. They are primarily constructed from wood and fiberglass — materials that reduce visibility to radar.

Only the cockpit and exhaust tubes protrude above the water, while the rest of the vessel remains submerged. The stealthy design allows drug traffickers to move large quantities of narcotics while avoiding detection by patrols and surveillance systems.

The website reported that the narco subs require less skill to construct and operate compared to the fully submersible craft. It also means they run a greater risk of being spotted, since they skim across the surface of the water.

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Why this story matters

Efforts by Mexican authorities to intercept drug trafficking operations, including the seizure of a "narco sub" carrying over 3.5 tons of cocaine, highlight ongoing transnational challenges in combating the illegal drug trade and its impact on both Mexico and the United States.

Drug trafficking interception

Mexican authorities' interception of a vessel carrying large quantities of cocaine demonstrates ongoing enforcement actions against organized crime and drug smuggling networks.

Transnational crime

The capture of narco subs and drug lab raids illustrate the cross-border nature of the drug trade and the coordinated efforts required to address it.

Law enforcement strategy

The use of advanced surveillance, specialized naval tactics and refusal of foreign military assistance reflect Mexico's evolving approach to managing drug-related crime.