President Obama at the White House
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President Obama reacts to shooting in Arizona

A US congresswoman has been shot in the head while meeting local constituents in Tucson, Arizona.

Gabrielle Giffords, who is a Democrat, has undergone emergency surgery and is now in intensive care in hospital.

A nine year old child died and several other people were seriously injured.

President Obama said Gabrielle Giffords was a personal friend and he urged Americans to pray for her and the other victims.

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