Manila, July 24 -- US Secretary of State Marco Rubio said that Cuba's economic crisis could not be resolved without political change, while declining to spell out Washington's strategy for the communist-run island.

Responding to questions during a press conference in Manila, Rubio said Cuba's leadership lacked the ability to reform the country's economy and remained unwilling to abandon what he described as a failed political system.

Asked what kind of political change the United States wanted in Cuba, Rubio replied: "You want me to give you details on our plan? Okay, not today."He argued that Cuba's leaders "don't know what they're doing.""They don't know how to fix their economy. They don't understand basic concepts."Rubio said Havana h...