The US Secretary of State, Marco Rubio, said on Sunday evening that the negotiations with Iran have made little progress, and that he does not expect an imminent breakthrough.
Rubio added, in statements he made before leaving Florida to attend the G7 foreign ministers' meeting in Paris, that US President Donald Trump prefers to reach a diplomatic solution, but he described the Iranian demands as "unacceptable", and some of them are "absurd, reprehensible and completely unrealistic".
Trump, for his part, said on Sunday that it was highly unlikely that he would launch new strikes on Iran if negotiations progressed and led to a strong agreement.
But he warned that the United States has identified additional Iranian infrastructure targets, including bridges, that could be targeted if military operations resume.