President Donald Trump accused Iran of violating the ceasefire, while U.S. forces boarded another ship the Defense Department said had been providing material support to Iran.

US President Donald Trump says he expects "to be bombing" if no progress is made as Wednesday's ceasefire deadline looms.

The city of Islamabad has entered a high-security lockdown as Vice President JD Vance leads a U.S. delegation for last-minute peace talks, even as Tehran threatens to boycott the summit over the ongoing maritime blockade.

The status of the Strait of Hormuz and Iran's nuclear enrichment program are among the biggest obstacles to reaching a deal.

CAIRO (AP) — After U.S.-Israeli bombardment eliminated Iran’s supreme leader and much of its top echelons, the Islamic Republic’s leadership didn’t fall apart — but negotiations to end the war offer a new test.

Iran said it has no plans to send negotiators to Pakistan for a new round of talks after the United States seized an Iranian-flagged cargo ship in the Strait of Hormuz.

Gulf sources say U.S.–Iran diplomacy is now centered less on rolling back Iran’s missile program and more on enrichment levels and tacitly accepting Tehran’s leverage over Hormuz, which carries about a fifth of global oil supplies.

Oil markets have whipsawed since the start of the Iran war, with supply risks around the Strait of Hormuz driving extreme price swings and historic volatility.