Washington cites optimism over a deal even as Iran threatens to shut down Red Sea shipping

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The White House on Wednesday dismissed as untrue reports that the US had sought to extend a ceasefire with Iran, while confirming that discussions over a second round of in-person negotiations were under way after marathon talks in Islamabad last week ended without a breakthrough. White House press secretary Karoline Leavitt told reporters that discussions were under way about a further round of talks with Tehran but...