Iran announced it has surpassed the limit on uranium enrichment permitted under the terms of the 2015 nuclear deal, and said it would continue to increase its stockpile. Trump responded to the news by saying Iran was “playing with fire.” Iranian Foreign Minister Mohammad Javad Zarif said they would not bow to U.S. pressure but would engage in dialogue with any parties that demonstrate respect.

Last week, France, Germany and the United Kingdom said that INSTEX—an alternative financial mechanism that would circumvent U.S. sanctions—was operational. Iran said that the system was a positive development but that Europe was not buying Iranian oil and needed to do more to uphold its commitment to keeping the landmark 2015 agreement alive in the face of the U.S. withdrawal last year and crippling sanctions.