OAS Secretary-General Jose Miguel Insulza was scheduled to speak at the conference Tuesday, but developments in the Honduran political crisis led to an emergency meeting of the OAS and Insulza was forced to cancel his appearance, The Miami Herald reported.
Costa Rician President Oscar Arias will deliver an address on Honduras, the newspaper said.
Monday was the three-month anniversary of Jose Manuel Zelaya's ouster as Honduran president in a military coup. The United Nations, the OAS and the European Union have condemned the coup and demanded that Zelaya be reinstated. De facto President Robert Micheletti said Zelaya will never return to power and that the deposed president will be arrested if he leaves the Brazilian embassy, where he has been holed up since he secretly returned to Honduras Sept. 20.