June 25 (UPI) -- U.S. Customs and Border Protection seized 1,155 pounds of cocaine with a street value of about $15 million south of Cabo Rojo. Puerto Rico, two days after a vessel with 18 pounds of cocaine was found nearby in Rincon.

CPB's Air and Marine Operations interdicted a vessel shortly before midnight Tuesday in western Puerto Rico and arrested three people from the Dominican Republic without proper documentation to enter or remain in the United States.

The 30-foot yola-type vessel had outboard engines and carried three people, navigating north about 22 miles south of Cabo Rojo.

The Coastal Interceptor vessel was supported by an AMO UH-60 Blackhawk helicopter.

The FBI took custody of the three people as well as a rifle. The Drug Enforcement Administration assumed custody of the narcotics.