Iran live updates: Trump threatens Iran infrastructure strikes if talks fail

White House press secretary Karoline Leavitt offered little new insight into the status of negotiations between the U.S. and Iran, but warned on Wednesday that President Donald Trump is prepared to "unleash hell" if Tehran balks at making a deal to end the war.

"The president's preference is always peace. There does not need to be any more death and destruction," Leavitt told reporters at a press briefing.

"But if Iran fails to accept the reality of the current moment, if they fail to understand that they have been defeated militarily and will continue to be, President Trump will ensure they are hit harder than they have ever been hit before," she continued. "President Trump does not bluff, and he is prepared to unleash hell. Iran should not miscalculate again."

MORE | Trump prepared to 'unleash hell' if Iran doesn't make deal, White House warns, amid questions on status of talks

Four new polls, one consistent finding: Most Americans oppose the United States' strikes in Iran.

A Reuters/Ipsos poll conducted March 20-23 found 61% of Americans disapproving of U.S. military strikes in Iran, while 35% approved.

A Pew Research Center poll, conducted March 16-22, found 59% of Americans saying the U.S. made the wrong decision in using military force in Iran, while 38% said it was the right decision.

A Quinnipiac poll conducted March 19-23 found 54% of registered voters opposed to the U.S. military action in Iran while 39% supported it.

An AP-NORC poll conducted March 19-23 found 59% of Americans saying U.S. military action in Iran has gone too far, while just 26% say it has been about right and 13% say it has not gone far enough.

Read more on the polls here.

Iran has intelligence that its enemies, with help from a regional country, are planning to occupy an Iranian island, the speaker of Iran's parliament, Mohammad-Bagher Ghalibaf, said in a post on X.

Ghalibaf warned the unspecified regional country that if this happens, "all the vital infrastructure of that regional country will, without restriction, become the target of relentless attacks."

Press TV, Iran's English language state media, is quoting an official saying Iran is rejecting the U.S.'s 15 point proposal to end the war.

"Iran will end the war when it decides to do so and when its own conditions are met," the official said.

Press TV says the "official outlined five specific conditions under which Iran would agree to end the war."

According to Press TV, the conditions include a complete halt to "aggression and assassinations;" the establishment of concrete mechanisms to ensure that the war is not reimposed on Iran; guaranteed and clearly defined payment of war damages and reparations; and the conclusion of the war across all fronts and for all resistance groups involved throughout the region.

Iran also wants recognition over its sovereignty over the Strait of Hormuz and assurance that it will remain Iran's natural and legal right, and it constitutes a guarantee for the implementation of the other party's commitments, according to Press TV.