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 aware of the proposals said on Monday.

A framework to end hostilities has been put together by Pakistan and exchanged with Iran and the U.S. overnight, the source said, outlining a two-tier approach with an immediate ceasefire followed by a ​comprehensive agreement.

"All elements need to be agreed today," the source said, adding the initial understanding would be ​structured as a memorandum of understanding finalised electronically through Pakistan, the sole communication channel in ⁠the talks.

Axios first reported on Sunday that the United States, Iran and regional mediators were discussing a potential 45-day ​ceasefire as part of a two-phase deal that could lead to a permanent end to the war, citing U.S., ​Israeli and regional sources.

The source told Reuters Pakistan's army chief, Field Marshal Asim Munir, has been in contact "all night long" with U.S. Vice President JD Vance, special envoy Steve Witkoff and Iranian Foreign Minister Abbas Araqchi.

Under the proposal, a ceasefire would take effect immediately, ​reopening the Strait of Hormuz, with 15–20 days to finalise a broader settlement. The deal, tentatively dubbed the "Islamabad Accord," ​would include a regional framework for the strait, with final in-person talks in Islamabad.

There was no immediate response from U.S. and ‌Iranian officials. ⁠Pakistan's foreign office spokesperson Tahir Andrabi declined comment.

Iranian officials have previously told Reuters that Tehran was seeking a permanent ceasefire with guarantees they will not be attacked again by the U.S. and Israel. They have said Iran has received messages from mediators including Pakistan, Turkey and Egypt.

The final agreement is expected to include Iranian commitments not to pursue ​nuclear weapons in exchange for ​sanctions relief and the ⁠release of frozen assets, the source said.

Two Pakistani sources said Iran has yet to commit despite intensified civilian and military outreach.

"Iran has not responded yet," one source said, adding ​proposals backed by Pakistan, China and the United States for a temporary ceasefire ​have drawn no ⁠commitment so far.

There was no immediate response from Chinese officials to requests for comment.

The latest diplomatic push comes amid escalating hostilities that have raised concerns over disruption to shipping through the Strait of Hormuz, a critical artery for global oil ⁠supplies.

U.S. President ​Donald Trump has in recent days publicly pressed for a rapid end ​to the conflict, warning of consequences if a ceasefire is not reached within a short timeframe.

The conflict has heightened volatility in energy markets, ​with traders closely watching any developments that could affect flows through the strait.

TRUMP SAYS DEAL MUST BE MADE BY TUESDAY

In a post laden with expletives on his Truth Social platform on Sunday, Trump threatened further strikes on Iranian energy and transport infrastructure if Iran failed to make a ​deal and reopen the Strait by Tuesday. Later on Sunday, the president in a follow-up post gave a more precise deadline: "Tuesday, 8:00 P.M. Eastern Time! (Wednesday ​0000 GMT)"

Fresh aerial strikes were reported across the region on Monday, more than five weeks since the U.S. and Israel began pounding Iran in a war that has killed thousands ‌and damaged ⁠economies by boosting oil prices.

Iran responded to the attacks by effectively closing the Hormuz waterway, a conduit for about a fifth of the world's oil and natural gas supply, and attacking Israel, U.S. military bases and energy infrastructure around the Gulf.

Anwar Gargash, an adviser to the UAE president, said any settlement must guarantee access through the Strait of Hormuz.

He warned that a deal that failed to rein in Iran’s nuclear programme and its missiles and drones would ​pave the way for "a more dangerous, more ​volatile Middle East".

Iranian weekend strikes ⁠on petrochemical facilities and an Israeli-linked vessel in Kuwait, Bahrain and the United Arab Emirates underscored the country's ability to fight back despite Trump's repeated claims to have knocked out its missile and drone capabilities.

Iranian state media said the ​head of the Revolutionary Guards' intelligence organisation, Majid Khademi, has died. Strikes by Israel and the U.S. have ​killed several high-ranking members ⁠of the Iranian regime, including Supreme Leader Ayatollah Ali Khamenei, who was replaced by his son, Mojtaba.

Israeli rescuers retrieved two bodies from the rubble of a residential building in Haifa hit by an Iranian missile on Sunday, Israeli media said.

About 3,540 people have been killed in Iran since the war erupted, including at least ⁠244 children, ​said U.S.-based rights group HRANA.

Israel has also invaded southern Lebanon and struck Beirut in a ​fight against Iran-backed Hezbollah militants that has become the most violent spillover of the U.S.-Israeli war on Iran.

Lebanon's heavy casualties include 1,461 killed, including at least 124 children, Lebanese authorities say.

ISRAEL VOWS TO DESTROY IRAN'S INFRASTRUCTURE

Israel’s Defence Minister Israel Katz in a statement issued on Monday threatened to destroy Iran’s infrastructure and hunt down its leaders "one by one".

Israel said on Monday it had attacked Iran's South Pars petrochemical complex in Asaluyeh. Emergency and firefighting teams brought a blaze under control at the complex, Iran's National Petrochemical Company. No casualties were reported.

The petrochemical complex’s power supply was cut off after two companies supplying it with electricity, water and oxygen were attacked, Tasnim news agency ​said.

An Israeli attack in mid-March on the South Pars gas field ​that Iran shares with Qatar prompted an escalation in ⁠the war, with Iran striking energy targets across the Middle East.

The International Atomic Energy Agency on Monday confirmed military strikes close to Iran's Bushehr nuclear power plant, but said that the plant itself was not damaged.

Trump has repeatedly warned Iran he could expand U.S. strikes to include civilian infrastructure, such as power plants and bridges.

Experts say such attacks could constitute war crimes, but the ​International Criminal Court lacks jurisdiction because the countries involved are not members of the court.

The Geneva Conventions say that parties involved in military conflict must distinguish between "civilian objects and military objectives", ​and that attacks on civilian objects ⁠are forbidden.

IRAN CONTINUES TO FIGHT BACK

Iranian weekend strikes on petrochemical facilities and an Israeli-linked vessel in Kuwait, Bahrain and the UAE underscored the country's ability to fight back despite Trump's repeated claims to have knocked out its missile and drone capabilities.

Iran has responded to U.S. and Israeli attacks by effectively closing Hormuz, a conduit for about a fifth of the world's oil and natural gas supply, and attacking Israel, U.S. military bases and energy infrastructure around the Gulf.

About 3,540 people have been killed in Iran in the war, including at ⁠least 244 children, ​said U.S.-based rights group HRANA.

At least four Israelis were killed in a missile attack on a residential building in Haifa in northern Israel overnight, Israeli ​emergency service MDA said on Monday, bringing the total number of Israeli civilian fatalities from Iranian and Hezbollah attacks to 23.

Israel has also invaded southern Lebanon and struck Beirut in a fight against Iran-backed Hezbollah militants that has become the most violent spillover of the war on Iran.

Lebanon's heavy casualties include 1,461 ​killed, including at least 124 children, Lebanese authorities say.

Thirteen U.S. service members have died and hundreds of others have been wounded.