April 6 (Reuters) – Iran and the United States have received a plan to end hostilities that could come into effect on Monday and reopen the Strait of Hormuz, a source familiar with the proposal said on Monday.
Sources said Pakistan had drawn up a framework for ending hostilities and exchanged it with Iran and the United States overnight, outlining a two-tiered approach for an immediate ceasefire followed by a comprehensive deal.
“All elements need to be agreed today,” the source said, adding that the initial understanding would take the form of a memorandum of understanding to be finalized electronically through Pakistan, the only communication channel in the negotiations.
The United States, Iran and regional mediators are discussing a possible 45-day ceasefire as part of a two-phase deal that could lead to a permanent end to the war, Axios first reported on Sunday, citing U.S., Israeli and regional sources.
Sources told Reuters that Pakistan Army Chief of Staff Field Marshal Asim Munir has been in contact “throughout the night” with US Vice President Vance, Special Envoy Steve Witkov and Iranian Foreign Minister Abbas Araqchi.
Under the proposal, a ceasefire would take effect immediately, with the Strait of Hormuz reopened and a broader settlement completed within 15 to 20 days. The agreement, tentatively called the Islamabad Agreement, will include a regional framework for the strait and will lead to final face-to-face talks in Islamabad.
There was no immediate response from U.S. and Iranian officials. Pakistan Foreign Ministry spokesman Tahir Andrabi declined to comment.
Iranian officials have previously told Reuters that Tehran was seeking a permanent ceasefire and assurances that they would not be attacked again by the United States and Israel. They said Iran had received messages from mediators including Pakistan, Türkiye and Egypt.
The final deal is expected to include a pledge by Iran not to develop nuclear weapons in exchange for lifting sanctions and releasing frozen assets, sources said.
Two Pakistani sources said that while Iran had stepped up civilian and military outreach, it had not yet made a commitment.
“Iran has yet to respond,” one source said, adding that a temporary ceasefire proposal backed by Pakistan, China and the United States has so far received no commitments.
Chinese officials did not immediately respond to requests for comment.
The latest diplomatic push comes as hostilities escalate, raising concerns about disruptions to shipping in the Strait of Hormuz, a key artery for global oil supplies.
U.S. President Donald Trump has publicly urged a quick end to the conflict in recent days, warning of consequences if a ceasefire is not reached soon.
The conflict has heightened volatility in energy markets, with traders keeping a close eye on any developments that could affect flows through the strait.
(Reporting by Reuters staff; Editing by Raju Gopalakrishnan)