The United Nations nuclear watchdog, the International Atomic Energy Agency (IAEA), revealed this week that the Islamic Republic has engaged in another violation of the nuclear deal in its decision to enrich uranium at the Fordo nuclear plant.

While nuclear discussions concerning Tehran’s return to the 2015 Joint Comprehensive Plan of Action (JCPOA), or Iran nuclear deal, resumed this week in Vienna, the IAEA revealed that the Iranian regime has begun enriching uranium at one of its plants via advanced centrifuges. The decision to do so is another violation of the terms of the 2015 deal.

The site of interest where Iran is using advanced centrifuges is the Fordo nuclear plant, which is located south of Tehran. As it stands, Iran is enriching uranium at 20% at this location, which is another breach of the deal, as it requires enrichment levels of no more than 3.67%.

In a report by the IAEA, the organization said, “The Agency has decided and Iran has agreed to increase the frequency of verification activities at FFEP and will continue consultations with Iran on practical arrangements to facilitate implementation of these activities.”

As Tehran’s aggression continues to grow in the region, multiple countries have already hinted at a military response targeting Iran’s nuclear program if talks fail in Vienna.