The governments of Brazil, Spain and Mexico on Saturday vowed ‌to step up coordinated aid to Cuba to alleviate what they described as a humanitarian crisis caused by the US blockade of the Caribbean island.

In a joint statement, the three countries called for sincere dialogue in line with the UN Charter, adding that the Cuban people must be free to determine their own future.

The statement came after Spanish Prime Minister Pedro Sanchez hosted Brazilian President Luiz Inacio Lula da Silva and Mexican President Claudia Scheinbaum in Barcelona for an international summit aimed at mobilizing against the far right.

Cuba has been preparing for the possibility of US military action after repeated warnings from US President Donald Trump suggesting the country could be his next target, following the forcible seizure of Nicolas Maduro in Venezuela and Washington's conflict with Iran.

The Trump administration has tightened pressure by restricting fuel supplies to Cuba, deepening what is already one of Cuba's most severe economic and energy crises in decades.

(With input from Reuters)