US officials earlier told the BBC that the framework of a ceasefire extension deal had been agreed, pending the approval of Trump and Iran's leadership.
Related stories
What Experts Think the Democratic Blue Wave Will Mean For Climate Action
Iranians celebrate setback for Trump in US election, and other Mideast news
Meet the Doctors and Scientists Who Won in the Midterms
US midterm election results live: Trump blames Iran war after losses
Democrat leaders hail midterm election success
What Democrats’ Midterm Gains Reveal About Trump’s Voter Coalition