At least 17 people have died in Wednesday's twin terrorist attacks. President Trump expressed condolences but said "states that sponsor terrorism risk falling victim to the evil they promote."
Voters chose the reform-minded president by a margin of about 20 percent over his main conservative challenger, signaling a wish to continue Rouhani's goal of greater openness with the world.
Iran's reform-minded president, Hassan Rouhani, is up for re-election. Subtle changes in Iranian society are evident in the burgeoning tech sector. But conservatives say Rouhani has changed too much.
President Rouhani's re-election bid has hit a steep challenge from hard-liner Ebrahim Raisi. Though Ayatollah Khamenei will remain supreme leader, the choice still marks a crossroads. Here's a primer.
The U.S. will continue to waive some sanctions against Iran, a key aspect of the agreement negotiated by the Obama administration and other world powers.
The Russia-brokered deal is backed by regional heavyweights Iran and Turkey. But it remains to be seen whether this deal will be any different than other truces that have failed to stop the violence.
A government official said the blast occurred when workers changed the battery of a locomotive, creating a spark in a methane-filled tunnel. Many who died had rushed to help miners who were trapped.
Iranian state media say at least 21 miners died and scores more were injured in the mine in northern Iran. More than a dozen people were thought to still be trapped in the mine.
Secretary of State Rex Tillerson tells Congress that the Trump administration will take another look at sanctions to see if lifting them was in line with U.S. national security interests.