Officers in riot gear shot rubber bullets and tear gas (17 August 2014)
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Ferguson protests: National Guard sent to Missouri unrest

18 August 2014 Last updated at 09:53 BST

The US state of Missouri is sending the National Guard to the town of Ferguson as protests escalate over the police shooting of an unarmed black teenager.

Governor Jay Nixon signed an order to "help restore peace and order and to protect the citizens of Ferguson".

The decision was made as police clashed with angry crowds shortly before a second night under curfew began.

Aleem Maqbool reports.