Tehran on Monday accused Britain, France and Germany of failing to respect the 2015 Iran nuclear deal, after they threatened to reimpose sanctions over its atomic programme.

The 2015 deal, reached between Iran and the UN Security Council’s permanent members — Britain, China, France, Russia and the United States — plus Germany imposed curbs on Iran’s nuclear programme in exchange for sanctions relief.

But it unravelled when the United States in 2018, during Donald Trump’s first term as president, unilaterally withdrew from the accord and reimposed sweeping sanctions.