Iranian officials have threatened to forgo negotiations even as U.S. representatives plan to arrive in Pakistan for the meeting and a ceasefire is set to expire Wednesday.
President Trump said a U.S. delegation will head to Pakistan to resume talks to end the war with Iran, but Tehran expressed reluctance after the U.S. seized one of its cargo ships in the Strait of Hormuz.
The standoff over the Strait of Hormuz has escalated again as Iran reverses its reopening of the crucial waterway and fires on ships attempting to pass. Saturday's developments come after the United States said it would continue its blockade of Iranian ports.