The Guardian l Saeed Kamali Dehghan: Ali Akbar Salehi, who helped negotiate 2015 deal on Tehran’s atomic programme, says US risks upsetting balance of power in Middle East

The head of Iran’s atomic energy organisation, one of the architects of the 2015 landmark nuclear deal, has warned the US to stop upsetting the regional balance of power by siding with Saudi Arabia.

Writing in the Guardian, Ali Akbar Salehi said “lavish arms purchases” by regional actors – a reference to the Saudi purchase of $100bn of US arms during Donald Trump’s recent visit to Riyadh – would be seen as provocative in Tehran and that it would be unrealistic to expect Iran to remain “indifferent”.

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