(TJVNEWS) Western diplomats are deeply alarmed after a classified briefing given at the UN by the International Atomic Energy Agency (IAEA) on Wednesday, The Wall Street Journal reports, after some of the contents of IAEA findings which said the Iranians were intent on pursuing a major step toward nuclear weapons production had been leaked earlier last month. The new IAEA findings say Iran has now acted on its prior “threat” to produce uranium metal.

“In contravention of the 2015 nuclear accords, Iran has started producing uranium metal, a material that can be used to form the core of nuclear weapons, the United Nations atomic agency told members in a confidential report Wednesday evening,” WSJ reports.

The IAEA is alleging the small amount of uranium metal was produced by the first time on February 8 at the Isfahan nuclear facility.