Iran has breached the limit on its stockpile of low-enriched uranium set under a 2015 nuclear deal with world powers, a watchdog has confirmed.

The International Atomic Energy Agency said its inspectors had verified the 300kg (660lb) cap had been exceeded.

Iran stepped up production of enriched uranium, used to make reactor fuel but also potentially nuclear bombs, in May.

It said it was responding to sanctions reinstated by the US after President Donald Trump abandoned the deal.

The UK and Germany have called on Iran to reverse its decision, while the US said its strategy of “maximum pressure” would continue.

European nations had warned that any violation would bring consequences, and the deal allows for the re-imposition of multilateral sanctions that were lifted in return for Iran limiting its nuclear activities.

The development comes at a time of high tension in the Middle East, with Iran shooting down a US drone over the Strait of Hormuz in disputed circumstances, and the US accusing Iran of being behind two sets of attacks on oil tankers.

What has Iran said?

Iranian state media cited Foreign Minister Mohammad Javad Zarif as confirming on Monday afternoon that the limit on its stockpile of uranium enriched to 3.67% concentration – the level required for civilian nuclear power – had been breached.

“Our next step will be enriching uranium beyond the 3.67% allowed under the deal,” he said. “The Europeans have failed to fulfil their promises of protecting Iran’s interests under the deal.” Read more

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Iran has breached the limit on its stockpile of low-enriched uranium set under a 2015 nuclear deal with world powers, a watchdog has confirmed.

Iran has breached the limit on its stockpile of low-enriched uranium set under a 2015 nuclear deal with world powers, a watchdog has confirmed.