Iran's Tasnim News Agency reported that the country's negotiating team has halted the exchange of messages with the US through mediators in response to attacks on Lebanon .
According to Tasnim , no further talks will take place until Iran's demands for an end to Israeli military operations in Lebanon and Gaza are met.
The agency also reported that Iran and what it described as the "resistance front" have adopted a strategy aimed at completely blocking the Strait of Hormuz and activating other fronts, including the Bab el-Mandeb Strait
This comes after Iran's Foreign Ministry said on Monday that negotiations with the US are taking place in an atmosphere of "deep mistrust", while confirming that messages continue to be exchanged between the two sides despite ongoing disagreements over the direction of talks.
Speaking during his weekly press conference, Iranian Foreign Ministry spokesperson Esmail Baghaei said Tehran had entered negotiations fully aware that they would take place under conditions of distrust.
"Iran knew from the outset that it was negotiating in an atmosphere of distrust," Baghaei said, adding that the continued exchange of messages between Tehran and Washington was also occurring within that framework.
Baghaei said diplomacy was "not a substitute for strength" and argued that negotiations do not depend on trust between parties.
"When the other side constantly changes its positions and puts forward contradictory demands, it is natural that this would disrupt and prolong the negotiating process," he said, referring to amendments US President Donald Trump reportedly sought to introduce into a memorandum of understanding being negotiated between the two countries.
He urged Washington to reach a "clear decision" as soon as possible, saying what he described as contradictory American positions would not divert Tehran from its core objectives.
"These contradictions may, as some describe them, be part of their negotiating style," Baghaei said, adding that such an approach would not be effective with Iran .
Baghaei also revealed that one section of the memorandum of understanding addresses reconstruction following the war, including discussions on allocating funding to rebuild damaged areas.
"At this stage, I can explain the issue only to this extent," he said.
He added that if agreement is reached on 14 key clauses, their details would then be discussed over a period of between 30 and 60 days.
Responding to claims by Trump that an agreement had been reached regarding Iran's stockpile of enriched uranium, Baghaei denied that nuclear talks were currently underway.
"At this stage, our focus is on ending the war," he said. "No nuclear negotiations have taken place, and if it becomes necessary for us to act on nuclear issues, we know ourselves how to proceed."
Baghaei also said Iranian armed forces had targeted a US military base in Kuwait early on Monday, which he described as "the source of the American aggressive action".
The remarks came after Iranian officials announced a retaliatory strike following recent US attacks on Iranian military facilities.
Kuwaiti authorities said air defence systems intercepted incoming missiles and drones and condemned the attack as a violation of the country's sovereignty, while US officials said there were no reported casualties.
He accused Washington of repeatedly violating the ceasefire and said Iran remained committed to taking whatever measures it deemed necessary to preserve it.
Baghaei also accused Israel of seeking to escalate tensions across the region.
"The Zionist entity is seeking to escalate tensions," he said, arguing that Israeli actions in Lebanon were aimed at obstructing diplomatic efforts.
He further accused Israel of repeatedly violating the ceasefire in Lebanon while the United Nations and Security Council remained "mere spectators".
Baghaei said Israel continued to commit "the most horrific crimes" in Lebanon and the occupied Palestinian territories, warning that continued impunity for what he described as acts of aggression, war crimes, crimes against humanity, and genocide would have consequences for regional and international security.
Commenting on remarks by NATO officials regarding possible involvement in the Strait of Hormuz, Baghaei warned against any action that could further destabilise the Gulf.
"Any party possessing wisdom would not accept such a gamble," he said.
He added that NATO and other international actors should instead focus on pressuring the United States and Israel to change their behaviour.