Photos: Inside the White House situation room during 'Operation Midnight Hammer'

The White House released images from the Situation Room as U.S. forces carried out a major strike on three Iranian nuclear enrichment sites over the weekend.

Major US cities on high alert following airstrikes on Iranian nuclear facilities

Authorities in some of the top cities in the U.S. are working with federal officials to enhance security at sensitive locations, including implementing patrols and cyber monitoring after the U.S. strikes on Iran.

State Department issues worldwide caution for US travelers following Trump's Iran strikes

State Department officials issued worldwide caution for American travelers amid the Israel-Iran conflict, warning of potential demonstrations and travel disruptions across the Middle East.

BREAKING: Iran crown prince reacts to U.S.-Iran tensions
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Iran's exiled crown prince, Reza Pahlavi held a press conference on Monday where he announced he is ready to lead Iran into a new regime. Pahlavi said he plans on setting up a new "Secure platform" to coordinate efforts to overthrow Iran supreme leader, Ayatollah Ali Khamenei.

Major U.S. cities on high alert after strikes on Iran
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Authorities in New York are on high alert after U.S. airstrikes on three Iranian nuclear sites on Saturday night. FOX 5 New York's Hayley Fixler joins LiveNOW's Jean? Franseen to share the latest details.

BREAKING: Deadly Russian attack in Ukraine
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V, June 23 (Reuters) - Russian drone and missile attacks in and around Kyiv overnight killed seven people, injured dozens, sparked fires in residential areas and damaged the entrance to a metro station bomb shelter, Ukrainian officials said on Monday. At least six people were killed in Kyiv's busy Shevchenkivskyi district where an entire section of a residential high-rise building was destroyed, Tymur Tkachenko, head of Kyiv's military administration, said on the Telegram messaging app.

President Trump posts about Iranian regime change
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Dr. Alon Burstein joins LiveNOW's Austin Westfall to discuss where Iran's regime stands after U.S. strikes in the region.

State Dept. issues 'Worldwide Caution' for Americans
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The United States Department of State issued a "Worldwide Caution" alert for American citizens on Sunday following the United States strikes against Iranian nuclear sites. I the alert, the State Department said: "Worldwide Caution: The conflict between Israel and Iran has resulted in disruptions to travel and periodic closure of airspace across the Middle East.? There is the potential for demonstrations against U.S. citizens and interests abroad. The Department of State advises U.S. citizens worldwide to exercise increased caution." President Trump announced the attacks Saturday evening via social media and held a nationwide address shortly after. He said that the Iranian nuclear sites were 'obliterated,' and later said the attacks were 'monumental.'

B-2 bombers return to U.S. after strikes on Iran
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Tom Karako with the Center for Strategic and International Studies joins LiveNOW's Andy Mac to discuss "Operation Midnight Hammer," the mission carried out by the U.S. to strike nuclear facilities in Iran.

U.S. 'decided to destroy diplomacy,' Iran UN rep. says
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Representatives from both Iran and Israel spoke during an emergency meeting of the United Nations Security Council on Sunday, one day after the U.S. attacked three nuclear sites in Iran. Iran?s U.N. ambassador, Amir Saeid Iravani that the U.S. ?decided to destroy diplomacy,? and that the Iranian military will decide the ?timing, nature and scale? of the country?s ?proportionate response.? Israel's ambassador to the United Nations, Danny Danon, supported President Trump's decision to intervene in the conflict.

US bombs Iran latest: US boosts travel warnings

The U.S. launched strikes on three Iranian nuclear sites, joining Israel’s efforts to cripple Iran’s nuclear program in a major escalation. Here's the latest developments on Sunday.

Iran threatens to shut down Strait of Hormuz
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Iran has threatened before to close off the strait amid tensions with the U.S., and the disruption could be one way Iran retaliates after the U.S. bombed three of its nuclear sites on Saturday.

Operation midnight hammer: U.S. strikes Iran
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LiveNOW's Mike Pache interviews Heather Williams, Senior Policy Researcher at RAND, regarding future expectations in the Middle East. While also receiving a breaking news address from Israel U.N. ambassador, Danny Danon before the U.N. security council meeting.

Suicide bomber at Syrian church kills at least 13
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Suicide bomber kills at least 13 at a church in Syria. The explosion occurred in Dweil'a, on the outskirts of Damascus, during prayers at the Mar Elias Church. According to SANA, citing the Health Ministry, at least 53 people were wounded.

Strait of Hormuz: What is it, and could Iran close it?

Closing the Strait of Hormuz is one of the ways Iran could retaliate after the U.S. bombed three of the country’s nuclear sites. Here’s what that would mean.

Who are Iran's allies?

Iran relies on a network of paramilitary groups across the Middle East, but that network’s influence has greatly diminished in recent years.

US bombs Iran: Read Trump address here

President Trump addressed the nation Saturday night and said Iran's key nuclear sites are "completely and fully obliterated" after the US attacked, and warned Tehran against retaliation.

Trump addresses nation after strikes on Iran
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In a high-stakes move to curb Iran's nuclear ambitions and weaken a long-standing adversary, President Donald Trump announced Saturday that the U.S. military attacked three sites in Iran, directly aligning with Israel's efforts. White House Press Secretary Karoline Leavitt said, "The President will make an Address to the Nation at 10:00 PM ET. Tune in!"

Retaliation from Tehran expected after US strikes
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President Donald Trump said Saturday that the U.S. military struck three sites in Iran, directly joining Israel's effort to halt the country's nuclear program in an attempt to weaken a longtime foe. LiveNOW?s Austin Westfall is speaking about this breaking news and more with retired Marine Corp Intelligence Officer and National Security Analyst, Hal Kempfer.