The unilateral measures imposed by the United States against Cuba have a severe impact today on its scientific-technical development, affirmed a Cuban delegation in Vienna. Such sanctions affect its full participation in the technical and scientific cooperation mechanisms of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), stated Second Secretary Karlen Regaiferos Cruzata in the capital during the 67th session of the Working Group.

In his intervention at the meeting, which will extend until September 4, Regaiferos denounced that the intensification of the blockade, reinforced through executive orders of January and May 2026, causes constant power outages derived from energy harassment, which make real-time information processing impossible and severely damage equipment at the National Data Center. Additionally, he added, they prevent stable access to International Monitoring System data, vital for early tsunami warnings and seismological studies, according to information released by Cuban diplomatic sources.

Likewise, the Cuban diplomat denounced the unjust inclusion of Cuba on the illegal list of state sponsors of terrorism as part of the unilateral siege that undermines its scientific cooperation. Regaiferos called on the international community and the Technical Secretariat to continue efforts to overcome the obstacles imposed by these measures and to ensure that no country, especially developing nations like Cuba, is excluded from the benefits and responsibilities of the Treaty's verification regime. Despite these serious limitations, Cuba's delegation reiterated its firm commitment to multilateralism and to a world free of nuclear weapons, reaffirming its pacifist vocation and its active role as a State party to the Treaty, the diplomatic note adds.