Zarif told the acting head of the U.N. nuclear watchdog IAEA, Cornel Feruta, that Iran was acting under paragraph 36 of the accord, Fars reported. Iranian officials say the paragraph allows one party to the deal to cut its commitments if others do not live up to theirs.
Feruta reiterated that IAEA would carry out its verification activities in a "professional and impartial" manner, Fars added.