Gio Benitez in Chicago
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Indianapolis bans driving as US freeze continues

7 January 2014 Last updated at 09:50 GMT

North America's brutal cold snap is heading south and east, ushering in dangerously low temperatures.

About half of the US population has been placed under a wind chill warning or advisory, with residents being told their skin could freeze if they go outside.

In Chicago, temperatures have fallen to historic lows of -11F (-24C),

ABC News reporter Gio Benitez reports from Chicago.