Pakistan had hosted peace talks in April and attended as a mediator another round of technical-level talks held in Switzerland, days after the signing of the MoU.
This week, Iran and the US resumed overnight exchanges of fire after a days-long lull in fighting, although there were no reported strikes overnight Friday to Saturday.
The visit by Steve Witkoff, U.S. President Donald Trump's special Mideast envoy, and Jared Kushner, his son-in-law, comes after a weekend of crossfire in the Persian Gulf.