Habana, CUBA:  Cuban President Fidel Castro presides over a massive May Day demonstration at Havana's Plaza de la Revolucion (Revolution Square), 01 May 2005. A spokesman of Cuban President Fidel Castro read on Cuban National TV a document signed by Castro, 31 July 2006, by which he delegates power to his brother Raul Castro. Fidel Castro underwent surgery shortly after coming back from Mercosur?s Summit in Cordoba, Argentina. "I do delegate, provisionally, my duties as first secretary of the Central Committee of the Communist Party in Cuba, to the second secretary, comrade Raul Castro Ruz," Castro said. AFP PHOTO/Adalberto ROQUE  (Photo credit should read ADALBERTO ROQUE/AFP/Getty Images)
ADALBERTO ROQUE/AFP/AFP/Getty Images
Habana, CUBA: Cuban President Fidel Castro presides over a massive May Day demonstration at Havana's Plaza de la Revolucion (Revolution Square), 01 May 2005. A spokesman of Cuban President Fidel Castro read on Cuban National TV a document signed by Castro, 31 July 2006, by which he delegates power to his brother Raul Castro. Fidel Castro underwent surgery shortly after coming back from Mercosur?s Summit in Cordoba, Argentina. "I do delegate, provisionally, my duties as first secretary of the Central Committee of the Communist Party in Cuba, to the second secretary, comrade Raul Castro Ruz," Castro said. AFP PHOTO/Adalberto ROQUE (Photo credit should read ADALBERTO ROQUE/AFP/Getty Images)
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(CNN) —  

Former Cuban leader Fidel Castro has died at age 90, his brother announced.

Cuba has declared nine days of national mourning, while in Miami’s Little Havana, where many Cuban exiles live, there were jubilant scenes.

  • Obituary: “He reshaped Cuba in his image”
  • Gallery: Fidel Castro’s life in photos
  • Analysis: What now for US-Cuba relations?

CNN’s Emiko Jozuka, Blathnaid Healy, Eliza Mackintosh, Juliet Perry and Alison Daye contributed to this report.