In Bolivia's fire-ravaged lowlands, a caravan of indigenous
protesters is marching hundreds of miles to demand President Evo Morales declare a surge in wildfires a national disaster, a move they hope will unleash international aid.
Morales has been reluctant to make the designation as he campaigns for a fourth presidential term ahead of Oct. 20
elections, despite growing calls that he acknowledge the fires - which have already burned an area bigger than Costa Rica - were beyond his government's control.
Some 200 protesters - most indigenous Chiquitano people from Bolivia's east - have joined the caravan since it departed earlier this month from San Ignacio de Velasco, a ranching hub where fires have forced villagers from their homes and threatened pastures that sustain half a million head of cattle.