Iranian President Hassan Rouhani has dismissed a proposal for a new "Trump deal" aimed at resolving the nuclear row, saying it was a "strange" offer and criticizing US President Donald Trump for always "breaking" promises.

British Prime Minister Boris Johnson, who has praised Trump as a great deal maker, called for the president to replace Iran's 2015 nuclear deal with major powers with his own new pact to ensure Tehran does not get an atomic weapon.

Trump said he agreed with Johnson that a "Trump deal" should replace the Iran nuclear deal.

Iran nuclear programme
ran Nuclear Deal Talks: US Secretary of State John Kerry (L), US Secretary of Energy Ernest Moniz (2L), Robert Malley (3L), of the US National Security Council, European Union High Representative Federica Mogherini (C), Head of Iranian Atomic Energy Organisation Ali Akbar Salehi (2R)(Representational Image) Reuters

In a televised speech, Rouhani told Washington to return to the nuclear pact, which Washington abandoned in 2018.

The agreement calls for the lifting of international sanctions on Iran in return for curbs on its nuclear program. Since dumping the deal, Trump has reimposed sanctions on Iran that have crippled its economy.

Tehran says it wants to keep the agreement but cannot do so indefinitely if it receives none of the promised economic benefits. It has gradually taken steps to reduce its compliance, which prompted Britain, France and Germany to formally accuse it of violating the terms.

"This Mr. Prime Minister in London, I don't know how he thinks. He says let's put aside the nuclear deal and put the Trump plan in action," Rouhani said.

"If you take the wrong step, it will be to your detriment. Pick the right path. The right path is to return to the nuclear deal."

Rouhani said Iran could reverse steps that exceeded restrictions in the agreement as soon as sanctions are lifted.

Britain, France and Germany activated a dispute mechanism in the deal, which eventually could lead to the reimposing of UN sanctions. Iran called this step a "strategic mistake".

The European powers said they were acting to avoid a crisis over nuclear proliferation adding to an escalating confrontation in the Middle East.

Rouhani criticised the Europeans for reneging on promises to protect Tehran's economy from US sanctions.

Tensions have reached a new peak between the arch enemies since Washington killed an Iranian general in a drone strike in Baghdad on January 3. Tehran responded a week ago by launching missiles at US targets in Iraq. No Americans were hurt, but hours later Iran shot down a Ukrainian civilian airliner in what its government has acknowledged as a tragic mistake.

Rouhani repeated Iran's longstanding position that peace can come to the Middle East only when the United States withdraws from the region.

"American soldiers today are not secure in the region ... We don't want there to be insecurity in the world. We want you to go from here, but not with war. We want you to leave the region intelligently and it's to your benefit."