The BBC World Service has launched a temporary emergency lifeline radio programme for Iran in response to the ongoing turmoil in the country, and the unprecedented crackdown on protests.

Repairs at key missile sites began soon after they were hit by Israeli and U.S. strikes last year, but work at Iran’s nuclear facilities has been slower.

Low oil prices give President Donald Trump more leverage over Iran, U.S. Energy Secretary Chris Wright said Friday, speaking as the two adversaries teeter on the brink of another conflict.

Iran seized two oil tankers Thursday while former Iranian minister Ezzatollah Zarghami threatened to make the Strait of Hormuz a "massacre and hell" for U.S. forces.

Middle Eastern diplomats see a chance for progress on Iran’s nuclear program, but they are pessimistic about other U.S. demands.

US President Donald Trump warned that Iran’s supreme leader should be “very worried,” as both sides prepare for their first formal negotiations since the United States bombed Tehran’s nuclear program last year.

Iran and the United States held indirect talks in Oman on Friday, negotiations that appeared to return to the starting point on how to approach discussions over Tehran’s nuclear program. But for the first time,

Iran and the United States held negotiations via Omani mediation on Friday to try to overcome sharp differences over Tehran's nuclear programme.