Harry visits addicts in Brazil's 'crack land'
27 June 2014 Last updated at 06:11 BST
As part of his tour of South America, Prince Harry visited an area of Sao Paulo, known as 'crack land', where he learned about a government project to cut down on crack cocaine addiction.
According to recent figures, Brazil has surpassed the US as the biggest crack cocaine consumer in the world.
Katy Watson reports.