Pakistan army chief Asim Munir is likely to travel to Tehran as diplomatic efforts continue between Iran and the United States.
Indirect talks have been ongoing, with Pakistan acting as a channel for message exchanges between the two sides.
US President Donald Trump warned that the opportunity for diplomacy is narrowing, describing the negotiations as being 'on the borderline' between a possible agreement and renewed escalation.
White House deputy chief of staff Stephen Miller warned Iran of severe consequences if talks fail, saying they can either agree to a satisfactory deal or face punishment from the US military.
The Iranian foreign ministry spokesperson said they have received US views and are reviewing them, with several rounds of communication taking place based on Tehran's original framework for the talks.
