Iran's Supreme Leader Ayatollah Ali Khamenei says his country will not negotiate on issues related to its military capabilities

Trump's security adviser warns Iran of 'very strong response' if Tehran launches attacks on US, allies in Persian Gulf

Nuclear officials say Iran quadrupled its uranium-enrichment production capacity amid tensions with the U.S. over Tehran's atomic program

A top Saudi diplomat says the kingdom does not want war but will defend itself, amid a recent spike in tensions with archrival Iran

The Latest: UK raises threat level for British personnel in Iraq because of heightened risk from Iran

Iran's foreign minister says sanctions imposed by the Trump administration are "unacceptable" but that his country is committed to an international nuclear deal that has steadily unraveled amid rising tensions

The governments of Saudi Arabia, the United Arab Emirates and Norway are formally notifying the United Nations that four commercial ships were targeted and at least three of them damaged in the territorial waters of the United Arab Emirates on Sunday

A top Emirati diplomat says UAE 'very committed to de-escalation' after alleged sabotage of oil tankers

Iran's supreme leader issues veiled threat over uranium enrichment amid rising tensions with US

New US sanctions are targeting Iran's vital metals industry, a major employer in the country's troubled economy