The crew of the Coast Guard Cutter Seneca, a medium-endurance cutter homeported in Boston, interdicted a drug smuggling, self-propelled semi-submersible (SPSS) vessel in the western Caribbean Sea July 13.
Used regularly to transport illegal narcotics in the Eastern Pacific, this interdiction is the first interdiction of an SPSS in the Caribbean and the first underwater drug removal of an SPSS.
A U.S. Customs and Border Protection maritime patrol airplane spotted the SPSS while on patrol and alerted the Seneca crew of the location.
With the assistance of the Customs and Border Patrol airplane, a Seneca-based Coast Guard helicopter crew and pursuit boatcrew interdicted the SPSS and detained its crew. The SPSS sank during the interdiction, but not before a quantity of cocaine was recovered.
The Seneca crewmembers commenced searching for the sunken SPSS on July 13. Several Coast Guard Cutters, the Honduran Navy and FBI dive teams conducted multiple search patterns. The SPSS was located by the crew of the Coast Guard Cutter Oak on July 26 using side-sonar equipment.