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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Israel was warned in advance of US attack: Official
The United States notified the Israeli government in advance of the strike, an Israeli official told ABC News.
The president also spoke with Israeli Prime Minister Benjamin Netanyahu after the strikes, according to the senior administration official.
-ABC News' Will Gretsky and Rachel Scott
Trump to ABC: 'Tremendous success tonight'
Trump spoke with ABC News' Jonathan Karl and claimed, "Tremendous success tonight."
B-2 stealth bombers were used in the attack: Officials
B-2 bombers conducted the strike along with several dozen other aircraft, two U.S. officials told ABC News.
-ABC News' Luis Martinez
Johnson, Thune briefed ahead of strikes on Iran: Sources
House Speaker Mike Johnson was briefed ahead of the U.S. strikes on Iran's nuclear sites, a source familiar with the briefing told ABC News.
Johnson was supposed to be in Israel on Sunday to address the Knesset, but the trip was scrapped because of the ongoing conflict.
The speaker also put out a statement endorsing the strikes, calling it a "decisive" action that prevents terrorism.
Senate Majority Leader John Thune was also briefed ahead of the U.S. strikes on Iran, two sources familiar with the conversation told ABC News.
"The regime in Iran, which has committed itself to bringing ‘death to America’ and wiping Israel off the map, has rejected all diplomatic pathways to peace. The mullahs’ misguided pursuit of nuclear weapons must be stopped," Thune said in a statement.
-ABC News' Kelsey Walsh and Rachel Scott