CCTV image taken moments before the shooting
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Brazil police arrested after teen shooting caught on CCTV

3 April 2013 Last updated at 01:54 BST

Footage showing two teenagers being shot in Brazil has emerged, amid claims police did nothing to stop the killings.

The video shows the victims' final moments and also captures a police car nearby, which later drives off - apparently ignoring the shooting.

Eight officers have now been arrested.

From Rio de Janeiro, the BBC's Julia Carneiro reports.