The U.S. and Iran failed to reach a peace deal after 21 hours of negotiations.
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israeli strikes targeting military and government sites.
Trump set a deadline for Iran to fully reopen the Strait of Hormuz or face broad strikes on its critical infrastructure. Hours before the deadline expired, Trump said he had agreed to suspend planned bombing for two weeks if Iran agreed to reopen the Strait of Hormuz.
Iranian Foreign Minister Abbas Araghchi then said that "safe passage through the Strait of Hormuz will be possible via coordination with Iran's Armed Forces and with due consideration of technical limitations."
Israeli Prime Minister Benjamin Netanyahu said he supported the ceasefire with Iran, but that Lebanon -- where intense Israeli strikes continued -- was not covered by the agreement, despite Iranian protests.
The Israel Defense Forces' Farsi language X account on Tuesday morning issued a warning to all Iranians to "refrain from using and traveling by train throughout Iran" until 9 p.m. local time.
"Your presence on trains and near railway lines endangers your life," the post said.
The Saudi Defense Ministry said in posts to X on Tuesday morning that its forces intercepted seven ballistic missiles and 18 drones fired toward the country.
The ministry said that missile debris fell "in the vicinity of energy facilities" and that damage assessment is ongoing.
The Islamic Revolutionary Guard Corps called President Donald Trump's threats to destroy all of Iran’s bridges and power plants if a deal to reopen the Strait of Hormuz isn't reached "baseless" and vowed to continue their operations.
"The rude rhetoric, arrogance and baseless threats of the delusional U.S. president, arising from the deadlock he faces and aimed at justifying the repeated defeats of the U.S. military, will have no effect on the continuation of offensive and crushing operations by the fighters of Islam against U.S. and Israeli enemies, and will not repair the humiliation of the United States in West Asia," IRGC spokesperson Ebrahim Zolfaqari said in a statement published in Iranian state media.
President Donald Trump is threatening to destroy all of Iran’s bridges and power plants in a four-hour blitz attack on Tuesday night if the countries don’t agree to a deal to reopen the Strait of Hormuz by 8 p.m. ET.
"We have a plan because of the power of our military, where every bridge in Iran will be decimated by 12:00 tomorrow night, where every power plant in Iran will be out of business, burning, exploding, and never to be used again," Trump said. "I mean, complete demolition by 12:00, and it will happen over a period of four hours if we want it to. We don't want that to happen."
The president stressed that any deal must include reopening the Strait of Hormuz, saying, “We have to have a deal that's acceptable to me, and part of that deal is going to be we want free traffic of oil and everything else.”
He wouldn’t discuss specifics of ceasefire negotiations but said, “we have a active, willing participant on the other side.”
Trump has sent mixed messages for weeks, saying the war with Iran is winding down while also threatening more attacks. Asked which one it is, Trump replied, “I can’t tell you. I don't know."
“Depends what they do,” Trump said, before repeating his threat to send Iran back to the “stone ages.”
-ABC News’ Mary Bruce
