ERBIL, Kurdistan Region of Iraq - US President Donald Trump on Friday said that he rejected Iran's latest peace proposal after reading the first sentence, asserting that Tehran did not offer sufficient guarantees regarding its ending of its nuclear program though expressing that a 20-year moratorium on enrichment would be acceptable to Washington.

Iranian representatives on Sunday responded through Pakistani mediation to a US peace proposal focused on "ending the war and maritime security," according to state media, with the US president later terming the reply "TOTALLY UNACCEPTABLE!"

According to the semi-official Tasnim News Agency, citing informed sources, the Iranian response emphasized the necessity of an immediate end to the war, ensuring that Iran will not be attacked again, the lifting of US sanctions, and the Iranian control of the Strait of Hormuz.

Iranian semi-official media on Friday reported that Tehran was seeking to address issues relating to immediate peace and the ending of the two sides' respective blockades, while the nuclear issue would be dealt with at a later point.

Speaking aboard Air Force One on Friday upon his departure from China, Trump told reporter: "Well, I looked at it and if I don't like the first sentence, I just throw it away."

When questioned what the first sentence was, he said it was "unacceptable" and that "if they have any nuclear in any form, I don't read the rest."

US President Donald Trump on Friday said that he rejected the latest Iranian peace proposal after reading the first sentence, expressing that a 20-year moratorium on nuclear enrichment by Iran would be acceptable but "the level of guarantee from them was not enough" pic.twitter.com/D9BjpQLF5L

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Tackling Iranian nuclear ambitions, which Tehran denies having, has been a key justification for the US-Israeli war on Iran, which has been halted following the reaching of a ceasefire on April 8.

Since that juncture, the two foes have engaged in a tentative peace process that is being mediated by Pakistan, with only one face-to-face meeting having been held between Iranian and US representatives.

Trump, however, appeared to express willingness to agree to a temporary halt of Iranian nuclear enrichment as part of any prospective deal, saying that "20 years is enough. But the level of guarantee from them… it's got to be a real 20 years."

The president also said that he only implemented the ceasefire as a "favor" to Pakistan, coming as he has repeatedly mulled a resumption of hostilities. Earlier in the day, he mentioned in a Truth Social post "the military decimation of Iran" following it up with "(to be continued!)."

On Sunday, Trump denied suggestions that combat operations are over in Iran, and hinted at a possible two-week campaign aimed at "specific targets," noting, "We could go in for two more weeks and do every single target."