BERLIN - A political solution in the standoff over Iran's nuclear program is still possible, German Chancellor Angela Merkel said on Monday, but she added Tehran posed a threat not just to Israel but to the whole world.

"I support a political solution ... and I believe that we are not at the point where the search for political solutions has been exhausted," she told a news conference in Berlin.

The European Union foreign policy chief Catherine Ashton will meet Iran's chief nuclear negotiator Saeed Jalili in Istanbul on Tuesday, a spokeswoman for Ashton said on Monday.

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