Soldiers had been ordered on to the streets of Brasilia as anti-government protests worsened.
Venezuela's top prosecutor says Juan Pablo Pernalete was hit in the chest by a tear gas canister.
Doctors in Brazil are experimenting with a new treatment for burns by using fish skin.
Why Venezuelan parents are keeping their children at home
Why a $1.6bn car plant has been abandoned
Why Venezuela's crisis is likely to worsen
Internet growth fuels expansion of Cuba's start-ups
The unusual plan to save a Caribbean island's eco-system
The young basketball star who died protesting.
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