U.S. forces will begin a blockade of maritime traffic to and from Iranian ports Monday morning, according to U.S. Central Command.

“U.S. Central Command (CENTCOM) forces will begin implementing a blockade of all maritime traffic entering and exiting Iranian ports on April 13 at 10 a.m. ET, in accordance with the President’s proclamation,” according to a CENTCOM statement late Sunday afternoon.

“The blockade will be enforced impartially against vessels of all nations entering or departing Iranian ports and coastal areas, including all Iranian ports on the Arabian Gulf and Gulf of Oman,” the statement continued, adding that CENTCOM forces “will not impede freedom of navigation for vessels transiting the Strait of Hormuz to and from non-Iranian ports.”

President Donald Trump said Sunday morning in a post on his social media platform that the U.S. will “immediately” begin a blockade of the Strait of Hormuz, following the failure of peace negotiations between the U.S. and Iran.

Commercial mariners will be provided with additional information prior to the start of the blockade, according to CENTCOM, which also advised “all mariners” to monitor advisory broadcasts and contact U.S. naval forces “when operating in the Gulf of Oman and Strait of Hormuz approaches.”

Sayed Reza Salihi-Amiri, Iran’s minister of cultural affairs and tourism, reportedly said in an interview with the Associated Press, “Trump is an unstable, delusional figure marked by a set of contradictions.”

The comments come as President Donald Trump said Sunday that if no peace deal is reached with Iran in the next 48 hours, “we’re blowing up the entire country.”

On March 26, Trump extended an ultimatum a second time in the same week for Iran to completely open the Strait of Hormuz to international shipping traffic.

Over the weekend, Trump warned the Iranian government that if it doesn’t fully open the critical maritime passageway for oil and trade by Tuesday, “you’ll be living in Hell.”

Salihi-Amiri reportedly told the AP of the Strait of Hormuz, “it is open to the world, but closed to Iran’s enemies.”

The Artemis II moon mission will see four astronauts go on a 685,000-mile, 10-day journey around the moon. Here is what the timeline looks like:

Day 1 is launch day. The astronauts lift off aboard NASA’s newest spacecraft, Orion, which will sit atop the Space Launch System rocket. The spacecraft will reach initial orbit and then high-Earth orbit to make a push toward the moon.

Days 2 through 4 are transit days, with the journey to the moon taking three days. Over the course of the journey, the crew will continue to evaluate Orion’s systems and practice emergency procedures, in addition to other activities.

On day 5, Orion will enter the lunar sphere of influence, meaning the moon is the main gravitational pull. On day 6, the crew will come its closest to the moon while traveling the farthest from Earth, according NASA.

Days 7 through 10 will see the astronauts make their way back to Earth before re-entering Earth’s atmosphere at high speed, up to 25,000 miles per hour.

The Orion spacecraft will deploy a series of parachutes once through the heat of re-entry to slow down and it will splash down in the Pacific Ocean The U.S. Navy will recover the capsule.

-ABC News’ Mary Kekatos

President Donald Trump said in a post to social media that the U.S. struck “many long sought after targets” in Iran on Sunday.

“Big day in Iran. Many long sought after targets have been taken out and destroyed by our GREAT MILITARY, the finest and most lethal in the World,” Trump wrote.

Earlier on Sunday, Trump reportedly told the Financial Times that the U.S. has about “3,000 targets left — we’ve bombed 13,000 targets.”

Trump also suggested to the FT that he is considering a ground operation in Iran, possibly aimed at Iran’s Kharg Island oil export terminal in the northern Persian Gulf. Trump said U.S. forces could “very easily” take the island.

“Maybe we take Kharg Island, maybe we don’t. We have a lot of options,” Trump told the FT, noting that this would “mean we had to be there for a while.”

“To be honest with you, my favourite thing is to take the oil in Iran but some stupid people back in the U.S. say: ‘Why are you doing that?’ But they’re stupid people,” Trump told the FT.

The administration is reportedly considering a ground operation against Iran in the Persian Gulf to safeguard the strategic Strait of Hormuz, where commercial shipping has been subject to Iranian harassment and tolls since the U.S. and Israel launched the conflict on Feb. 28.

Trump told reporters on Air Force One on Sunday that Iran had given permission for 10 oil tankers to pass through the Strait, and that another 20 more would do so soon.

Speaking to the FT, Trump claimed that Iran’s Parliament Speaker Mohammad Bagher Ghalibaf was “the one who authorized the ships” to pass through safely.

Trump also again speculated about the status of Iran’s newly-appointed Supreme Leader Mojtaba Khamenei, who succeeded his father Ayatollah Ali Khamenei after the latter was killed by U.S.-Israeli airstrikes on Tehran on Feb. 28.

“The son is either dead or in extremely bad shape,” Trump said. “We’ve not heard from him at all. He’s gone.”

Mojtaba Khamanei’s absence from the public eye has fueled speculation he was badly injured in the American-Israeli attacks, though Tehran has insisted he is alive and safe.

-ABC News’ Meg Mistry and Emily Chang

Saudi Arabia, the United Arab Emirates, Bahrain and Kuwait all reported fresh Iranian attacks on Monday.

The UAE Defense Ministry said in a post to X that its forces intercepted an unspecified number of Iranian missiles and drones. In Abu Dhabi — one of the country’s seven constituent emirates — the official government media office said one Indian national was injured by “debris falling in the Al Shawamekh area following the successful interception of a ballistic missile.”

The Saudi Arabian Defense Ministry said its forces intercepted several Iranian drones over the country’s eastern region on Monday. Iran also fired two ballistic missiles toward the Riyadh region, the ministry said, one of which was intercepted and the other of which fell in an uninhabited area.

Bahrain’s Defence Force said in a post to X on Monday morning that it had intercepted another 32 Iranian drones and two ballistic missiles.

In Kuwait, the Defense Ministry said in a post to X in the early hours of Monday that air defenses were responding to “hostile missile and drone attacks.”

White House press secretary Karoline Leavitt talked about President Donald Trump’s call for other nations to help protect the Strait of Hormuz in a gaggle with reporters and an appearance on Fox News on Monday.

Leavitt said Trump wants allies to “step up” and do more for the security of the Strait of Hormuz “because these other countries are benefiting greatly from the United States military taking out the threat of Iran.”

“These countries are absolutely benefiting from ensuring that Iran can never obtain a nuclear weapon,” Leavitt told reporters.

“So I think the president is absolutely right to call on these countries to do more to help the United States to reopen the Strait of Hormuz, so that we can stop this terrorist regime from restricting the free flow of energy, and the fact that they are doing so just underscores why President Trump needed to take this action in the first place,” she told reporters.

Leavitt also provided an update on the current state of the war, saying the U.S. “continues to totally decimate the rogue Iranian terrorist regime.”

“We’ve now hit more than 7,000 targets. We’ve sunk more than 100 of their naval vessels. We are completely annihilating their Navy ,and their ballistic missile and drone strikes against the United States are down 95%,” she told Fox News.

-ABC News’ Michelle Stoddart

This year’s Oscars red carpet pre-show, the official lead-in to the ceremony, will be hosted by talk show host Tamron Hall and “Bachelor” host Jesse Palmer.

You can watch the pre-show on ABC and Hulu when it airs at 6:30 p.m. ET/3:30 p.m. PT.

Prior to the ABC Oscars red carpet pre-show, don’t miss “On the Red Carpet at the Oscars” as nominees arrive at the Dolby Theater.

The pre-show, which will include Linsey Davis, Whit Johnson, Lara Spencer, Chris Connelly and more, will be available starting at 3:30 p.m. ET on ABC and available to stream on ABC News Live.

The Israeli military launched an assault overnight on buildings affiliated with Iran’s internal security forces, with the Israeli Air Force carrying out “an additional wave of airstrikes targeting regime-affiliated sites across Tehran,” the Israel Defense Forces said.

Airstrikes targeted “dozens” of sites connected to those forces, IDF spokesperson Avichay Adraee said in a post in Arabic on social media early on Wednesday.

The IDF said it dropped “numerous” munitions on headquarters belonging to the Basij Militia, forces that had been employed by the former supreme leader in quelling domestic unrest.

“These headquarters were used by the Iranian regime to maintain its stability and tighten its control across various parts of Iran by shaping the operational situation picture,” Adraee said.

He added, “Additionally, the Supply and Logistics Directorate affiliated with the regime’s Ground Forces was targeted, along with missile launch platforms and defensive systems.”

Strike’s on infrastructure related to the Iranian regime were expected to “continue to deepen,” he said.

Israel has launched a preemptive strike against Iran “to remove threats to the State of Israel,” Israeli officials said.

Eyewitness in Tehran have told ABC News that they heard two blasts in the Iranian capital.

This comes as tensions escalate between the U.S. and Iran have peaked following a major U.S. military buildup in the Middle East and ongoing negotiations between the U.S. and Iran over Tehran’s nuclear program.

Israel Defense Minister Yisrael Katz signed a special order calling for a state of emergency to be imposed throughout Israel.

“You must obey the instructions of the Home Front Command and the authorities and remain in the protected areas,” the statement read.