Brazilian President Dilma Rousseff has dismissed allegations she obstructed a corruption investigation as "lies".
Prosecutors in Brazil file a $43.5bn (£30bn) civil lawsuit against iron miner Samarco, and its owners BHP Billiton and Vale.
French fashion house Chanel holds a show in the Cuban capital Havana - the first such event since the communist revolution on the island in 1959.
A look at fresh allegations against Brazil's ex-leader
On board landmark US cruise to Cuba
Venezuelans poke fun at power rationing
Home life in Cuba with the hard-drinking writer
What you need to know with 100 days to go
Brazil's campaigners see grounds for hope
Broadcast time 19:06 BST - 19:30 BST
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Broadcast time 23:06 BST - 23:20 BST
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