Morristown, New Jersey: As Iran began ramping up uranium enrichment, President Donald Trump accused the country of "doing a lot of bad things," and criticised the Iran nuclear deal, negotiated by President Obama, as "the most foolish agreement that you'll ever find."
Iran is pressuring European partners to find a way around the US sanctions and deliver the deal's promised economic relief.
The US unilaterally withdrew a year ago.
Iranian foreign ministry spokesman Abbas Mousavi told reporters Monday that Iran won't offer any further "deadlines" to save the deal by September.