The official said the proposal, conveyed to Tehran by Pakistan, “was reviewed in detail on Wednesday night by senior Iranian officials ​and the representative of Iran’s Supreme Leader”.

It lacks the minimum requirements for ​success and serves only U.S. and Israeli interests, the senior ⁠official said, adding that if realism prevails in Washington, “a path forward may still ​be found” to resolve the crisis.

Earlier on Thursday, U.S. President Donald Trump warned Tehran ​to “get serious” about talks to end the conflict that began with U.S. and Israeli strikes against Iran on February 28.

Trump said in a post on Truth Social that Iran was “begging” for ​a deal, after Iran’s foreign minister said messages conveyed through intermediaries did ​not amount to dialogue and that Iran had no intention of negotiating at present.

‘THEY BETTER ‌GET ⁠SERIOUS SOON’

Calling Iranian negotiators “very different and ‘strange’”, Trump added: “They better get serious soon, before it is too late, because once that happens, there is NO TURNING BACK, and it won’t be pretty.”

Trump later described the Iranians as “great negotiators” but said ​he was “not sure ​he’s willing to ⁠make a deal with them to end the war”.

A 15-point U.S. proposal to end the conflict includes demands ranging ​from dismantling Iran’s nuclear programme and curbing its missiles to ​effectively handing ⁠over control of the Strait of Hormuz, according to sources and reports.

Iran has hardened its stance since the war began, demanding guarantees against future military action, ⁠compensation for ​losses, and formal control of the Strait, Iranian ​sources say. It also told intermediaries that Lebanon must be included in any ceasefire deal, regional ​sources said.