Hundreds of indigenous Bolivians have started a second long march in protest at government plans to build a road through the Tipnis national park.

They say the project would destroy their homeland in the Amazon forest. A similar march last year led President Evo Morales to cancel the project.

But he later backtracked after other communities said the road would bring economic development.

Mr Morales now says all communities in the region will vote on the road plan.

After a religious ceremony, around 300 indigenous people including women and children marched off to the sound of drums from the city of Trinidad, in the Amazon, heading for Bolivia's main city, La Paz, high in the Andes.