Image provided by the Presidency of Chile shows Chiefs of State, Government and Ministers posing during the 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Presidency of Chile)

Image provided by the Presidency of Colombia shows Colombian President Juan Manuel Santos (L) talking with his Guatemalan counterpart Otto Perez Molina in the framework of 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Presidency of Colombia)

Image provided by the Presidency of Chile shows Chilean President Sebastian Pinera (C) posing with his counterparts from Colombia, Juan Manuel Santos (L) and Mexico, Enrique Pena Nieto (R), as they visit a crafts fair in the framework of the 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Presidency of Chile)

Haiti's President Michel Martelly (R front) and Haiti's Prime Minister Laurent Lamothe (L front) attend the opening ceremony of the 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Marco Dormino)

Guatemalan President Otto Perez Molina attends a session in the framework of 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Marco Dormino)

Venezuelan Foreign Minister Elias Jaua attends a session in the framework of the 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Marco Dormino)

Haiti's President Michel Martelly (L) greets General Secretary of the Association of Caribbean States (ACS) Alfonso Munera Cavadia during the opening ceremony of the 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Marco Dormino)

Image provided by the Presidency of Colombia shows Colombian President Juan Manuel Santos (L) talking with his Mexican counterpart Enrique Pena Nieto during a meeting in the framework of 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Presidency of Colombia)

Image provided by the Presidency of Chile shows Chilean President Sebastian Pinera (R) with his counterparts from Colombia, Juan Manuel Santos (C) and Mexico, Enrique Pena Nieto (L), visiting a crafts fair in the framework of the 5th Summit of the Association of Caribbean States (ACS) in Port-au-Prince, capital of Haiti, on April 26, 2013. (Xinhua/Presidency of Chile)