The US and Iran are in discussions about holding another round of face-to-face negotiations for a longer-term ceasefire, people familiar with the matter said, after talks in Islamabad led by Vice President JD Vance failed to produce a breakthrough.

The Strait of Hormuz remains effectively closed to most commercial shipping traffic due to Iran's threats and despite an ongoing U.S. military blockade of Iranian ports aimed at forcing a reopening. The tanker gridlock is keeping global oil and gas prices high, and keeping pressure on all parties to the conflict to find a solution.