Seven individuals were detained Sunday following the discovery of 24 pounds (11 kilograms) of cocaine aboard a Royal Caribbean cruise ship.

A U.S. Customs and Border Protection canine identified luggage containing the contraband during a cabin inspection prior to the Jewel of the Seas‘ departure from San Juan, Puerto Rico. Ten packages of the substance tested positive for cocaine and are valued at over $300,000.

Officials seized the contraband and detained seven individuals, including the cabin’s occupant. According to Royal Caribbean spokeswoman Cynthia Martinez, six of the seven arrested were U.S. male passengers.

“San Juan Office of Field Operations has a responsibility to ensure that criminal organizations do not use lawful travel as a means to conceal and move narcotics,” said Acting Area Port Director Keith McFarquhar. “Our officers remain vigilant to detect and prevent any attempts to circumvent the security measures that are in place.”

Photo Credit: CBP Newsroom