Iran announced on Wednesday that Britain would contribute in upgrading the Arak nuclear reactor after the United States withdrew from the nuclear deal.

“Experts from Britain will replace their US counterparts during reactor redesign process,” said Ali Akbar Salehi, head of Iran’s Atomic Energy Organization.

Under the nuclear deal, experts from both the United States and China were redesigning the Arak heavy water reactor to reduce the amount of plutonium produced by the reactor as a by-product.

In the same vein, Iranian officials said that the choice of Britain as a partner of China was not their call, according to media reports.

In May, US President Donald Trump announced the withdrawal from the nuclear deal, signed by world powers with Iran in the summer of 2015, causing the outrage of the US allies across the Atlantic Ocean.

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