Iranian negotiators met Pakistani PM as reports suggest US agrees to unfreeze Tehran's assets

Azadeh MoshiriSouth Asia correspondent, reporting from Islamabad It's hard to get a sense of how these negotiations will unfold and whether the two sides will even meet face to face. But we do have an update from a source in the Pakistani government who has told the BBC that Prime Minister Shehbaz Sharif, has met with the Iranian delegation over lunch. As in previous negotiations, it's possible that Pakistan will shuffle between rooms with US officials and then with Iran's delegation to see if a