BARCELONA — The governments of Mexico, Spain and Brazil issued a joint statement on Saturday pledging additional humanitarian aid to Cuba and appealing for respect for the island's sovereignty. The statement was released as leftist leaders from across the globe gathered in Barcelona.

Mexican President Claudia Sheinbaum, Spanish Prime Minister Pedro Sánchez and Brazilian President Luiz Inacio Lula da Silva represented their governments in the declaration. The three governments expressed great concern about the humanitarian situation affecting the people of Cuba and committed to coordinating an increase in their humanitarian response to alleviate the suffering of the Cuban people.

The joint statement called for respect for territorial integrity, sovereign equality and the peaceful settlement of disputes as outlined in the United Nations Charter. The three governments warned against any actions that run contrary to international law and said any solution in Cuba must ensure that the Cuban people decide their future in full freedom.

The Barcelona gathering brought together leaders to express support for multilateralism. Sánchez criticized right-wing populism during the event without mentioning U.S. President Donald Trump by name.

The Trump administration has increased pressure on Cuba's communist government in an apparent attempt to prompt a change in leadership. Since January, Trump has barred imports of oil from Venezuela and threatened to impose sanctions on countries that deliver oil to Cuba. Fuel shortages and energy blackouts in Cuba followed the sanctions threats.

Trump has floated the removal of Cuban President Miguel Díaz-Canel and suggested the United States could use military force against Cuba after the conclusion of the U.S.-Israel war against Iran. The Trump administration denies U.S. policy has contributed to the humanitarian situation in Cuba and frames the crisis as the result of decades of economic mismanagement.

Trump has also criticized Spain in posts on Truth Social for not allowing the U.S. military to use its bases in the war with Iran and for not increasing its defense spending. The United States has maintained a trade embargo on Cuba since the 1960s.