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Protester interrupts Google I/O event with 'robot' heckle

25 June 2014 Last updated at 22:50 BST

One Google's biggest events of the year, its developer conference held in San Francisco, was twice interrupted by protesters.

In one of the incidents, a man was heard shouting "you all work for a totalitarian company that builds robots that kill people".

The Google I/O event is intended to be a showcase of new products and tools for the many coders that create software for use on Google-powered devices.

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