Report: Iran prepares to withdraw from parts of nuclear deal

Secretary of State Mike Pompeo talks to the media on the sidelines of the Arctic Council ministers' working dinner at the Arktikum museum in Rovaniemi, Finland, Monday, May 6, 2019. The U.S. is dispatching an aircraft carrier and other military resources to the Middle East following what it says are indications that Iran and its proxy forces are preparing to possibly attack U.S. forces in the region. (Mandel Ngan/Pool Photo via AP)

TEHRAN, Iran (AP) - Iran on Wednesday will announce it is partially withdrawing from the nuclear deal it struck with world powers, its state-run news agency reported, a year to the day that President Donald Trump pulled America from the accord.

The terms of the withdrawal remain unclear, though the IRNA news agency said President Hassan Rouhani will explain Iran's decision in letters to leaders of Britain, France and Germany that will be handed to ambassadors in Tehran. Iranian Foreign Minister Mohammed Javad Zarif separately will write to the European Union, the agency said. Details of the letters will not be publicly disclosed, it said.

The letters will come as officials in the Islamic Republic previously warned that Iran might increase its uranium enrichment, potentially pulling away from a deal it has sought to salvage for months.