TEHERAN (AFP) - Iranian President Hassan Rouhani spoke with his French counterpart Emmanuel Macron on Saturday (Aug 31), warning him that Iran would take the next step in reducing its nuclear commitments unless Europe lives up to to its own undertakings.
Tensions have spiked in the Gulf since May last year when President Donald Trump unilaterally withdrew the United States from a nuclear deal between Iran and world powers - known formally as the Joint Comprehensive Plan of Action (JCPOA).
Ships have been attacked, drones downed and oil tankers seized in the Gulf in recent months.
President Macron has been leading efforts to de-escalate the situation and he expressed hopes of bringing together Mr Rouhani and Mr Trump for a meeting during a Group of Seven (G-7) summit days ago.
But Mr Rouhani has downplayed the likelihood of that happening unless the US first lifts crippling sanctions that it has slapped on Iran since pulling out of the deal.
"If Europe cannot operationalise its commitments, Iran will take its third step to reduce its JCPOA commitments," Mr Rouhani reportedly told Mr Macron in the phone call.
However, "this step, just like the other ones, will be reversible", he added, quoted on the Iranian government's website.
"Unfortunately, after this unilateral move by the US, European countries did not take concrete measures to implement their commitments," he continued.
"The contents of JCPOA are unchangeable and all parties must be committed to its contents," he said.
Mr Rouhani said Iran had two priorities: for all parties to the JCPOA to fully implement their obligations, and "securing the safety of all free maritime transportation in all waterways including the Persian Gulf and Strait of Hormuz".
Mr Macron's office released a statement later on Saturday in which he stressed the importance of "the current dynamic to create the conditions for a de-escalation through dialogue and building a durable solution in the region".
A French diplomatic source said it was important, after recent discussions between Paris and Teheran, to establish that Mr Rouhani was "still ready to negotiate. And that is the case".
Twelve months on from the US pulling out of the nuclear deal, Iran began reducing its commitments.
The United Nations' nuclear watchdog, the International Atomic Energy Agency, said last Friday that just over 10 per cent of Iran's uranium stockpile was now enriched up to 4.5 per cent, above the 3.67 per cent limit stipulated in the 2015 deal.
It also said Iran's total stockpile of uranium, which under the accord should be no more than the equivalent of 300kg of uranium hexafluoride, now stood at roughly 360kg.
Iran has not specified what its third step might be in reducing its commitments to the deal.
Foreign Minister Mohammad Javad Zarif said in a recent interview with the Sueddeutsche Zeitung newspaper that the step would be taken on Sept 6.