A man, believed to be a prisoner, climbing down a tree
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Brazil prisoners escape after riot

Prisoners at a youth detention facility in Sao Paulo have staged a mass escape after a riot in which members of the centre's staff were taken hostage.

Prisoners in Sao Paulo have staged a mass escape after a riot.

Helicopter images show smoke rising from burning mattresses at the youth detention centre, where dozens of staff members were also taken hostage.

Footage then shows men climbing over a wall at the Fundacao Casa facility, then escaping down trees.

Serena Chaudhry reports.