High-stakes peace talks between the United States and Iran collapsed in Islamabad after 21 consecutive hours of negotiations.

Iran doubled down on its pledge to restrict ships passing through the Strait of Hormuz as long as the US blockade of Iranian ports remains in place.

Iran’s supreme leader says that negotiations with America “are not intelligent, wise or honorable” after President Donald Trump floated nuclear talks with Tehran.

Pakistan's twin cities, Islamabad and Rawalpindi, have imposed sweeping curbs on public and goods transport and shut major hubs as they hope to hold the second round of US-Iran talks. The preparations come even as it isn't certain if the talks will take place at all.