US envoys are expected to travel to Pakistan in a new bid to salvage ceasefire talks with Tehran.But Iran ruled out direct negotiations with US representatives as its top diplomat arrived in Islamabad on Friday.The latest effort to broker a deal comes as an indefinite ceasefire has paused most fighting, but economic fallout is still mounting with global energy shipments disrupted by the closure of the Strait of Hormuz.

US envoys are expected to travel to Pakistan in a new bid to salvage ceasefire talks with Tehran.But Iran ruled out direct negotiations with US representatives as its top diplomat arrived in Islamabad on Friday.The latest effort to broker a deal comes as an indefinite ceasefire has paused most fighting, but economic fallout is still mounting with global energy shipments disrupted by the closure of the Strait of Hormuz.