Initial members of the Iranian and US delegations landed in Islamabad for ceasefire talks, a Pakistani diplomatic source told Qatari outlet Al Jazeera and Saudi outlet Al Hadath on Tuesday morning.
However, Iranian state media denied this, saying that nobody has left Tehran as of Tuesday morning.
A separate Pakistani source also denied this, telling pro-Hezbollah Lebanese outlet Al Mayadeen that "there is no inication so far of the arrival of any Iranian delegation, regardless of its level, to the Pakistani capital."
US Vice President JD Vance is expected to leave for potential peace talks with Iran in Islamabad on Tuesday morning, Axios reported early Tuesday, citing three US sources.
Earlier on Monday, US President Donald Trump told the New York Post that Vance and his delegation were already en route to Pakistan, but conflicting sources claimed the vice president was still in the US.
Axios reported that the White House first waited for a signal from Tehran that an Iranian delegation would also be joining.
Iranian delegation hesitated to travel due to IRGC pressure - report
According to a source with knowledge cited by Axios, the Iranian negotiating team hesitated due to pressure from the Islamic Revolutionary Guard Corps to hold a stronger line and to refuse talks without an end to the US blockade of the Strait of Hormuz.
James Genn and Danya Saperstein contributed to this report.