Brazil will not take part in the annual meeting of the Organization of American States in Washington on Wednesday due to a dispute over a giant hydroelectric plant, said opponents of the scheme.
Hundreds of indigenous people protesting the construction of a road in Bolivia's Amazon basin region are again marching toward the capital, La Paz, their leaders said.
Brazil has said a request to halt work on its massive hydro-electric dam in the Amazon rainforest is unjustified despite environmental concerns. Brazil's foreign ministry was responding to the request by the Inter-American Commission on Human Rights.