Cancun, Mexico (CNN) -- Latin American and Caribbean leaders meeting in Mexico approved the creation of a regional organization Tuesday that leaves out the United States and Canada. Approval for the Community of Latin American and Caribbean States came from heads of state attending the final session of a two-day "Unity Summit" near the Mexican beach resort of Cancun. More than 30 heads of state attended the meeting hosted by Mexican President Felipe Calderon. Creation of the Community of Latin American and Caribbean States, which would bring together the region's 33 countries, was a top item on the agenda. Some leaders see it as an attempt to counterbalance the Organization of American States, in which the United States and Canada are members.
@highlight
Leaders of 33 Latin, Caribbean nations form Americas bloc that excludes U.S., Canada
@highlight
Formation of group seen as attempt to counterbalance Organization of American States
@highlight
Venezuela's Chavez recounts shouting match with Colombian president
@highlight
Cuban President Raul Castro had to intervene to stop the verbal fight
Chavez, in turn, has accused Colombia of sending unmanned planes to spy on @placeholder.