The tougher demands could be seen as a possible attempt to speed up negotiations and put pressure on Iran to accept the current draft of an agreement, an official with insight into the matter told the newspaper.
According to the NYT, the president has been frustrated, among other things, by how long it has taken Iran to respond to the US proposal.
More specifically, Trump's additions to the new proposal for Iran include measures related to the country's ability to manufacture nuclear weapons and to opening the Strait of Hormuz, the news site Axios reports.
At the same time as the new details about tightened requirements became known, the president reiterated once again that the United States "is very close to a good deal" with Iran in an interview on Fox News on Saturday, local time.
- We will make a good deal, otherwise we will just return and finish it militarily, but this (an agreement) would go faster, he told the channel and continued:
It's probably better from a humanitarian point of view. There's something good about it too, it saves many lives - regardless of whether it's on the opposing side or not.
Earlier this week, media reports indicated that Iranian and American negotiators had agreed on a draft memorandum of understanding, but that it had not yet been approved by the countries' leaders. The proposal would have included a 60-day extension of the ceasefire.
