Updated

U.N. Secretary-General Ban Ki-moon has met with former Cuban leader Fidel Castro in Havana.

Ban's office tweeted that the two met for about 55 minutes Tuesday. The U.N. chief is in Cuba for a summit of the Community of Latin American and Caribbean States.

The U.N. office said it would provide details on the meeting shortly.

Ban met Monday with Cuban President Raul Castro, the younger brother of Fidel. Ban's office said the two discussed the U.S. embargo on Cuba and the human rights situation on the island.

Ban's office says it's his first visit to Cuba.

In her own tweet, Washington's U.N. ambassador, Samantha Power, urged world leaders visiting Cuba to meet with "everyday Cubans" and independent groups "to learn what's really happening & support democratic change."