United Nations, September 26 (RHC)-- Cuban President Raul Castro spoke Saturday morning at the United Nations Summit for the Adoption of the Post-2015 Development Agenda.  The Cuban head of state denounced the instability in various regions in which two-thirds of the world's population live.

The Cuban president emphasized that in order to achieve a world of peace among nations, with democracy, social justice, dignity and respect for human rights, it is imperative to adopt tangible commitments in the area of sustainable development and to change the present international economic order.

In another part of his speech, delivered this morning at the United Nations, Cuban President Raul Castro referred to the establishment of diplomatic relations between Cuba and the United States, as well as changes in U.S. policies toward the island. He noted that despite these important advances, the economic, commercial and financial blockade of Cuba persists, calling it the main obstacle for the economic development of the country.