The head of the Organization of American States called for an emergency meeting of regional governments to evaluate Venezuela’s respect for democracy, a move that could lead to the country’s suspension from the hemispheric body. President Nicolas Maduro responded by saying he would take action against his country’s opposition-controlled Congress.

OAS Secretary General Luis Almagro said Tuesday that Venezuela had suffered “grave alterations of democratic order” and called for a vote on the matter in the coming weeks, possibly to coincide with the group’s annual meeting next month in the Dominican Republic.