Explained: Iran’s nuclear programme as its atomic deal with world powers unravels

Here's where the Iran nuclear deal now stands and what Tehran has done to ramp-up its atomic programme.

Iran President Hassan Rouhani of Iran meets with reporters at a news conference in New York during a visit to the United Nations on Sept. 26, 2019. (The New York Times: Dave Sanders)

Iran announced Tuesday it would inject uranium gas into 1,044 centrifuges that had previously been kept empty under its 2015 nuclear deal with world powers.