Iran’s military has said the United States is failing in its war and negotiating with itself to save face, dismissing claims by US President Donald Trump that talks are under way to end the conflict.

“Has the level of your inner ⁠struggle reached the stage ⁠of you negotiating with yourself?” Ebrahim Zolfaqari, spokesperson for the unified command of Iran’s armed ⁠forces, Khatam al-Anbiya Central Headquarters, said on Wednesday in comments carried by Iran’s semiofficial Fars news agency.

“Don’t call your failure an agreement,” he added, mocking US leadership.

The statement is the latest official Iranian denial that Tehran is engaged in diplomacy with Washington, even as Trump insists talks are ongoing and reports circulate of the US sending a peace proposal.

Speaking to reporters at the White House yesterday, the US president said Washington is speaking to the “right people” in Iran, which he claimed wants to make a deal “so badly”.

“They are talking to us, and they’re making sense,” said Trump.

Trump’s position marks a stark shift from days earlier, when he threatened to strike Iran’s power plants if Tehran did not fully reopen the Strait of Hormuz, where it has threatened vessels from “enemy” nations. Hours before the ultimatum expired on Monday – and US markets reopened for the trading week – Trump said he would delay any planned attack by five days, citing diplomatic progress. Iranian officials denied this.

Zolfaqari said there would be no return to previous oil prices or the prior regional order “until our will is done”.

‘Obscurity in Iran’

Questions over possible diplomacy were amplified by US media reports that Washington had sent Tehran a 15-point plan to end the war.

The Wall Street Journal, quoting unnamed officials, reported that the plan calls on Iran to dismantle its three main nuclear sites, end any enrichment on its soil, suspend its ballistic missile programme, curb support for its regional allies and fully reopen the Strait of Hormuz. In return, Iran would have nuclear-related sanctions lifted and the US would assist the country’s civilian nuclear programme, according to the Journal.

Al Jazeera’s Mohamed Vall, reporting from Tehran, said there is “total confusion” in Iran over the status of potential negotiations.

“Contrary to the clarity with which Donald Trump seems to speak, there is obscurity in Iran,” said Vall. “What we hear instead are the officials and politicians here saying the complete opposite. They say there is no negotiation.

“There is total confusion, total obscurity, and it’s really making this situation very interesting and very strange,” he added.

While there is a “cloud of mistrust” between the US and Iran, Tehran is engaged diplomatically with several regional countries, including Pakistan, said Al Jazeera’s Tohid Asadi, also reporting from Tehran. Islamabad, which appears to have emerged as a possible mediator in the conflict, delivered the US’s plan to Tehran, according to The New York Times.

Israel, Iran trade strikes

Amid the competing claims about negotiations, Israel continued to strike Iran, and the US reportedly prepared to send more troops to the Middle East.

Israel’s military said it carried out a series of late-night strikes on infrastructure in Tehran. Iran’s Fars news agency reported at least 12 people killed and 28 wounded in an “enemy attack” on the residential area of Varamin in southern Tehran.

Iran, for its part, claimed to fire more missiles at Israel, including targeting a military base in the northern Israeli city of Safad, as well as sites in the cities of Tel Aviv, Kiryat Shmona and Bnei Brak. There were no immediate reports of casualties from that missile salvo, though an earlier rocket attack by Hezbollah killed one woman in northern Israel.

Meanwhile, the US was expected to send at least 1,000 soldiers from the Army’s elite 82nd Airborne Division to the ⁠Middle East, adding to some 50,000 US soldiers already in the region, the Reuters and AP news agencies reported.

“As the US is preparing for peace talks, it’s also preparing for war,” said Al Jazeera’s John Hendren from Washington, DC. “Diplomacy and military moves are going on at the same time.”