Ousted Honduras' President Manuel Zelaya during a press conference at the international airport of Comalapa, El Salvador, 05 Jul 2009Ousted Honduran President Manuel Zelaya has issued what he calls an "ultimatum" for his return to power.

Mr. Zelaya spoke to reporters in Nicaragua on Monday. He says the interim Honduran government that deposed him in June must give him back the presidency within a week.

Officials say the next round of talks between the two sides will take place this Saturday or Sunday in Costa Rica. Mr. Zelaya says if he does not resume office by then, he will consider the discussions a failure.

The Honduran military ousted Mr. Zelaya on June 28 and sent him to Costa Rica. The Honduran Supreme Court had accused him of trying to make unlawful changes in the constitution to seek another term.  

The U.S. and the Organization of American States have called for Mr. Zelaya's reinstatement.

Some information for this report was provided by AFP and Reuters.