The U.S. and Iran are expected to hold a second round of talks in Geneva about Iran’s nuclear program as tensions rise in the region

Iran has launched large-scale wargames in the Strait of Hormuz just one day before nuclear negotiations with the United States. The narrow waterway is critical for global oil supplies - and Tehran has warned it could shut it entirely if Washington launches an attack,

Iran’s Revolutionary Guards launched naval drills in the Strait of Hormuz on Monday, a move that reflected the escalating military tensions in the region a day before Tehran was due to hold talks with Washington.

Iranian foreign minister reportedly warns Tehran will "target U.S. bases" in the region if attacked by American forces, escalating Middle East tensions.

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.