HAVANA (CNN) -- Muhammed Ali, "the greatest" in the boxing world, spent three days in Cuba with actor Ed Asner delivering $1.2 million in medicines and medical supplies.

Ali and Asner, along with officials of the Disarm Education Fund and Direct Relief International, also toured Havana and met with Cuban President Fidel Castro the night before their departure Saturday.

Castro called the donations by the U.S. charitable agencies "a great moral gesture." Delegation members were critical of the 36-year U.S. economic embargo that is intended to force democratic change in the Communist nation.

CNN's Lucia Newman reports from Havana on the visit of the former world heavyweight champion and the star of the television series "Lou Grant."

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