Iran has reportedly rejected participation in the second round of talks with the US, citing the country's 'unrealistic' demands and the naval blockade of the Strait of Hormuz.
US President Donald Trump has signaled that American negotiators would be in Islamabad on Monday for the fresh round of talks, despite a shaky ceasefire set to expire on April 22.
The first round of talks between Iran and the US took place in Islamabad, but remained inconclusive due to differences on several issues, including Tehran's nuclear ambitions.
US negotiators, including Vice President JD Vance, are set to arrive in Islamabad this week, with Trump renewing threats to destroy bridges and power plants in Iran if a peace deal is not reached.