The grandson of former president Raul Castro, Raul Guillermo Rodriguez Castro, attends an event at the Colon Cemetery in Havana in January Rodriguez Castro, reportedly involved in negotiations with the United States, was shown on Cuban state television for the first time March13 participating in two key government meetings. File Photo by Ernesto Mastrascusa/EPA

July 10 (UPI) -- Cuba's Communist Party has publicly endorsed Raúl Guillermo Rodríguez Castro, a grandson of former leader Raúl Castro known as "El Cangrejo," as an official intermediary in diplomatic contacts with the United States.

Elier Ramírez Cañedo, deputy head of the party Central Committee's Ideological Department, confirmed Rodríguez Castro's role in a social media post, saying he was participating in the negotiations "by decision of the country's highest leadership."

Cuban Prime Minister Manuel Marrero reinforced the government's account of the talks between Havana and Washington in a post on X on Friday.

Without directly mentioning Rodríguez Castro, Marrero supported the version presented by the Communist Party and defended the negotiating team designated by the country's leadership.