March 23 (UPI) -- Cuba's foreign minister has accused the United States of tightening the embargo and maintaining a "tightened blockade at extreme levels" during the 10th Summit of the Community of Latin American and Caribbean States amid an energy crisis on the island.

During his speech Saturday in Bogota, Colombia,, Bruno Rodríguez Parrilla said Washington has imposed a "tightened blockade at extreme levels" and an "energy siege" with humanitarian consequences for the Cuban population.

"History shows that Cuba is not a threat to the national security of the United States," he said, while accusing the Trump administration of attempting to force a change of government through economic and political pressure.

Rodriguez said these measures are part of a strategy sustained for more than six decades to restrict Cuba's access to financing, markets, technology and fuel.

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