Nuclear test sanction threat

The United Nations says it "strongly condemns" North Korea's nuclear test. The United States is calling for an increase in sanctions against the communist state.

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North Korea is a 'serious threat' to the USA

US Secretary of Defence Leon Panetta on North Korea: "They represent a serious threat to the USA and we have to be prepared to deal with that."

In his speech later, Barack Obama will urge North Korea to stop the threats and will say their nuclear programme has done nothing to feed North Korean people.

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