"We reached an understanding on a number of issues, but our views diverged on two or three important issues, and ultimately the talks failed to produce an agreement," Baghaei said, as quoted by the Mehr news agency.
Iran and the US had talks in Islamabad on Saturday after US President Donald Trump had announced an agreement with Tehran on a two-week ceasefire on the night of April 8. On Sunday morning, the head of the US delegation, Vice President J.D. Vance, announced that Iran and the United States had failed to reach an agreement during lengthy negotiations and that the US delegation would return home without a deal.