The lack of aviation fuel in Cuba has triggered a new crisis that is severely impacting the international tourism sector and, in particular, Spanish companies with a significant presence on the island. The Cuban government has warned airlines that it cannot guarantee kerosene supplies at the country's airports for weeks, a situation that has forced a reconfiguration of flight operations and accelerated adjustments in the hotel sector. The crisis is part of a serious energy emergency plaguing the country, with difficulties importing oil and its derivatives, which affects not only air transport but also the electricity supply and economic activity in general. Tourism, Cuba's main source of foreign currency, is once again in an extremely vulnerable position.