Washington/Tehran, June 13 -- The United States and Iran are on the verge of a landmark agreement aimed at ending more than three months of conflict, with Pakistani Prime Minister Shehbaz Sharif saying an initial peace deal could be signed within the next 24 hours.

Pakistan, which brokered the ceasefire that halted hostilities in April and has continued to mediate between the two sides, is preparing for an electronic signing ceremony followed by technical-level negotiations next week, Sharif said on Saturday.

"We are closer to a peace deal than ever before," Sharif wrote on X. "With finalisation likely expected in the next 24 hours, Pakistan is preparing for the electronic signing of the peace deal immediately after, followed by technical...