"We call for an end to the war and to prevent its recurrence," said Iranian Foreign Ministry spokesman Esmail Baghaei, as reported by the Iranian state news agency IRNA. Reuters reported on Monday that Iran and the U.S. have received a proposal to end hostilities that could take effect on Monday. Axios also reported that the U.S., Iran, and regional mediators are discussing a possible 45-day ceasefire as part of a two-phase agreement that would lead to a permanent end to the war. Baghaei added that Iran has formulated a response to the United States' demands to end the war and will announce it when necessary, referring to a list of 15 demands that Washington conveyed to Tehran via Pakistan. He stated that the proposal was extremely excessive, unusual, and illogical, adding that Iran has very bitter experience in negotiations with the U.S. "Any diplomatic talk is absolutely incompatible with ultimatums, crimes, and threats of committing war crimes," he added, alluding to U.S. President Donald Trump's threat to bomb key Iranian infrastructure if Tehran does not open the Strait of Hormuz. Spokesman for the Iranian Armed Forces Ebrahim Zolfaghari said on Monday that if attacks on civilian targets are repeated, Iran's retaliation will be significantly broader and the losses many times greater, as reported by the Iranian news agency Tasnim.