Trump says damage to Iran's nuclear sites is 'far below ground level'
Trump said the U.S. attacked three nuclear sites in Iran.
The United States struck three nuclear sites in Iran on Saturday, President Donald Trump announced.
B-2 bombers dropped a number of Massive Ordnance Penetrator bombs -- known as "bunker busters" -- during the U.S. mission over Iran, a U.S. official confirmed.
A number of Tomahawk cruise missiles were also fired at targets inside Iran from a U.S. Navy submarine, the official confirmed.
Following the strikes, Trump addressed the nation, calling it a "spectacular military success."
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State Department issues 'do not travel' warning for Israel
The State Department on Monday upgraded its Israel, West Bank and Gaza travel advisory to a Level 4 "do not travel" warning.
The warning comes shortly after the State Department authorized the voluntary departure of family members and nonemergency U.S. government employees "due to the volatile and unpredictable security situation in the region," the alert said.
8 killed in Israel by overnight Iranian attacks
The death toll in Israel from Sunday night's Iranian ballistic missile strikes rose to eight people as of Monday, authorities said, as recovery efforts at impact sites continue.
At least 24 people have now been killed in Israel since the country launched its surprise attack on Iran on Friday, according to the latest figures released by Prime Minister Benjamin Netanyahu's office on Monday.
At least 224 people have been killed in Iran by Israeli strikes, Netanyahu's office said on Monday.
-ABC News' Jordana Miller
IDF orders evacuation of part of Tehran
The Israel Defense Forces issued a warning to residents in District 3 of Tehran to "immediately leave" ahead of planned strikes there.
"In the coming hours, the Israeli army will take action in this area to attack the Iranian regime's military infrastructure, just as it has done in recent days around Tehran," a post to the IDF's Farsi-language X account read.
-ABC News' Jordana Miller, Dada Jovanovic and Ellie Kaufman
Israel not seeking regime change in Iran, IDF says
Israel is "not planning to change the regime in Iran," Israel Defense Forces spokesperson Brig. Gen. Effie Defrin told ABC News' Ian Pannell in Tel Aviv on Monday.
"Our military targets, our military goals are to remove this threat, to remove the threat of a nuclear bomb over Israel and the ballistic missiles, and of course the proliferation of terror all over the region," Defrin said.
"It's up to the Iranian people to change the regime, not to us," Defrin said. "We are removing this threat. This is why we paved the way to Iran."
Asked about the growing toll on Israeli civilians as Iran retaliates, Defrin said, "Can you imagine what would have happened if this happens when Iran has nuclear capabilities?" He then suggested that Israel had "only a matter of days" in which to prevent such a development.
Attacks in Iran, Defrin continued, will go on for "as far as we're concerned."
-ABC News' Ian Pannell, Morgan Winsor, Dana Savir, Alessandro Pavone and Gabriella Abdul-Hakim