Iran is likely to announce today that it is partially withdrawing from the nuclear deal it struck with world powers, its state-run news agency reported.
The move comes a year after President Donald Trump pulled America from the accord. The terms of the withdrawal remain unclear.
The news agency said President Hassan Rouhani will explain Iran's decision in
letters to leaders of Britain, France and Germany that will be handed over to their ambassadors in Tehran.
Iranian Foreign Minister Mohammed Javad Zarif will separately write to the European Union, the agency said.
The United Nations' nuclear watchdog says Iran has continued to comply with the terms of the 2015 nuclear deal.