The Argentine navy boat vanished off the coast last Wednesday and no trace has been found.
Whitefish Energy says payments have been delayed from Puerto Rico's bankrupt power authority.
Haitians will have 18 months to return to the country or legalise their status in the US.
How refrigeration changed the food we eat and the way we shop
Brazil's culture wars heat up
Chile presidential's election explained
The Latin American artists grappling with a dark past
Venezuela grapples with its debt
How events in 1917 Russia still shape lives around the world
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