ISLAMABAD (AP) — The United States and Iran continued historic face-to-face negotiations early Sunday in Pakistan, days after a fragile, two-week ceasefire was announced, as the war that has killed thousands of people and shaken global markets entered its seventh week.

Meanwhile, the U.S. military said two destroyers transited the Iran-gripped Strait of Hormuz ahead of mine-clearing work, a first since the war beg...