GENEVA, May 6 (Xinhua) -- The imposition of "unilateral coercive measures" on Cuba, Venezuela, and Iran by the United States violates human rights, and the norms of international behavior, an expert appointed by the UN Human Rights Council said here Monday.

Idriss Jazairy, the UN Special Rapporteur concerned with the negative impact of sanctions, said in a statement that the use of economic sanctions for political purposes "violates human rights and the norms of international behavior".