71 killed in Israeli attack on Iran prison, official says

White House press secretary Karoline Leavitt told ABC News on Monday the U.S. military posture has not changed, suggesting the decision should be up to the Iranian people to "rise up against this brutal terrorist regime" if they do not engage in diplomacy moving forward.

In a separate Fox News interview, Leavitt said the president "believes the Iranian people can control their destiny."

This comes after President Donald Trump appeared to float the idea that there should be a change in leadership in Iran in a social media post on Sunday.

"It's not politically correct to use the term, 'Regime Change,' but if the current Iranian Regime is unable to MAKE IRAN GREAT AGAIN, why wouldn't there be a Regime change???," Trump wrote on his social media platform, Truth Social, on Sunday night.

-ABC News’ Rachel Scott

The U.S. Embassy in Qatar recommended American citizens to "shelter in place until further notice" out of "an abundance of caution," the embassy said on Monday.

The Al Udeid Base in Qatar -- the largest U.S. military installation in the Middle East -- houses about 10,000 American troops.

-ABC News' Lama Hasan

White House press secretary Karoline Leavitt told "Good Morning America" on Monday that the administration is confident that its weekend airstrikes "completely and totally obliterated" Iran's nuclear facilities.

Leavitt spoke to "Good Morning America" amid questions about the extent of the damage done at the Fordo site in particular, which is built hundreds of feet under a mountain to the south of Tehran. It was one of three facilities attacked by U.S. bombers and cruise missiles on Saturday.

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Karoline Leavitt discusses US strikes on IranWhite House press secretary Karoline Leavitt joins “GMA” to discuss the White House’s message following U.S. strikes targeting Iran’s nuclear program.

ABCNews.com

Questions have also been raised about the fate of enriched uranium processed at the site, which could potentially be used to create a nuclear weapon -- depending on its level of enrichment -- if it was removed from Fordo or other sites before the U.S. strike.

"We have a high degree of confidence that where those strikes took place is where Iran's enriched uranium was stored," Leavitt said on Monday.

"The president wouldn't have launched the strikes if we weren't confident in that," Leavitt said.

"They no longer have the capability to build this nuclear weapon and threaten the world," she added of Iran.

The Israel Defense Forces said it attacked the Fordo uranium enrichment site -- buried deep under a mountain outside the Iranian city of Qom -- on Monday to "disrupt access routes" to the facility.

Fordo was among the facilities attacked by U.S. bombers using Massive Ordnance Penetrators -- also known as "bunker-busters" -- this weekend.

The Israeli strike on Fordo on Monday came as part of a new wave of IDF attacks on Iranian military and governmental targets in the capital Tehran and elsewhere.