Western nations are planning to table a resolution at an IAEA meeting that will find Iran in non-compliance with its so-called safeguards obligations for the first time in 20 years, a senior western diplomat said.

The IAEA held a board session Wednesday on Iran's nuclear program, during which Britain, France, and Germany warned Iran that its escalating nuclear activities—such as 60 percent enrichment of uranium and expansion of centrifuge and stockpile limits—undermine the JCPOA, a 2015 deal with Iran, but did not call for immediate punitive steps.

Board of Governors has passed resolution formally declaring Iran noncompliant with its nonproliferation obligations for the first time since 2005, a move Tehran immediately condemned.