The OAS on Saturday night suspended Honduras' participation in the organization because of last week's military coup.
Honduras' interim government has already said it's quitting the organization rather than meet demands to reinstate the ousted president.
The decision was made during a special meeting of foreign ministers and supported by 33 out of 34 members of the Organization of American States with one abstention _ Honduras.
Secretary General Jose Miguel Insulza had asked the organization early Saturday to punish the de facto government by suspending the country from the organization.
Minutes before Insulza's report to foreign ministers, ousted Honduran president Zelaya said he's optimistic and is still planning to return to his country Sunday, a week after he was overthrown by a military coup.