The United States and Iran could finalise an agreement to end the Middle East war “within 24 hours”, key mediator Pakistan said on Saturday, after both sides expressed optimism about the chances of concluding a deal. The foes and mediators of the conflict have claimed a long-awaited accord is in its final throes, despite new skirmishes in the Strait of Hormuz in the months-long war that has roiled the region and global economy. Weeks of negotiations on a peace agreement after an April 8 truce...