US Defense Secretary Leon Panetta warned Iran on Saturday that the international community is ready to impose more sanctions if the country does not begin to address concerns about its nuclear program.

Speaking at a press conference with his Peruvian counterpart, Pedro Cateriano, Panetta said if Iran fails to seriously engage in dialogue, "make no mistake, the international community will continue to impose additional sanctions."

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Panetta also warned of escalating conflict after continued exchange of artillery fire between Syria and Turkey.

He said he has additional concerns that the conflict may escalate and spread to neighboring countries. He added that the US is using its diplomatic channels to relay worries about the fighting in the hopes that the conflict will not broaden.

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