According to a media release from CBP, an air surveillance crew spotted a vessel with “two outboard engines and approximately three persons on board” heading north towards the Puerto Rican coastline. The crew kept watching, guiding Coastal Interceptor Vessels to the suspect vessel’s location, where they intercepted it and boarded for a search.

“Inside the vessel, agents found [a] total of 37 bales of contraband,” the statement says. The contraband? Cocaine, weighing 2,351 pounds (1006.5 kilograms), which is worth around $23 million, according to CBP.

The Customs and Border Protection agents handed the drugs and the three men over to the Drug Enforcement Agency (DEA) for seizure and prosecution, respectively.

“Our collaboration with fellow law enforcement and our maritime domain awareness allows us to be successful interdicting these smuggling attempts,” said Augusto Reyes, director of Air and Marine Operations in Puerto Rico and the US Virgin Islands.

“Air and Marine Operations agents are determined to detect and intercept any attempts to smuggle contraband to our shores," Reyes added.