According to Iran’s semi-official Tasnim News Agency, Tehran submitted its proposal through Pakistan, which has been acting as a mediator between the two sides. The proposal reportedly called for an immediate end to the war on all fronts, a halt to the US naval blockade of Iranian ports, compensation for war damages, and guarantees against future attacks on Iran.

The proposal also stressed Iran’s sovereignty over the Strait of Hormuz, a strategic waterway through which nearly one-fifth of the world’s oil and liquefied natural gas supplies normally pass.

Despite a fragile ceasefire that came into effect last month after the US and Israel launched attacks on Iran in February, occasional exchanges of fire have continued between the two sides.

Trump reacted sharply to Tehran’s response in a post on Truth Social, stating: “I have just read the response from Iran’s so-called ‘Representatives.’ I don’t like it — TOTALLY UNACCEPTABLE.”

Israeli Prime Minister Benjamin Netanyahu also maintained a hardline position, saying Iran’s enriched uranium stockpile and nuclear infrastructure must be dismantled before the conflict can truly end.

According to Axios, a 14-point US memorandum includes demands such as suspending Iran’s uranium enrichment programme, reopening the Strait of Hormuz for unrestricted shipping, and linking sanctions relief to a final agreement between the parties.

Iran, however, has continued to restrict passage through the strait, contributing to volatility in global oil markets. Tehran has warned regional states and commercial vessels against cooperating with US sanctions or military operations in the Gulf.

Iranian military spokesman Mohammad Akraminia warned that ships passing through the Strait of Hormuz without coordinating with Tehran could face “severe consequences,” insisting the United States would not be able to impose a complete blockade in the region.

Meanwhile, regional tensions have expanded beyond Iran and the US. Kuwait said drones entered its airspace on Sunday, while the UAE reported intercepting two drones allegedly launched from Iran.

The UK and France are also leading discussions on a possible international maritime security mission aimed at protecting shipping routes in the Strait of Hormuz once hostilities ease. British Prime Minister Keir Starmer said such a mission would only proceed after fighting in the region ends.

Iran responded by warning of an “immediate and decisive” reaction to any foreign military deployment in the strait.

Pakistan has continued its diplomatic engagement with both Tehran and Washington as efforts to revive formal negotiations remain underway.