71 killed in Israeli attack on Iran prison, official says

The U.S. Embassy in Jerusalem resumed operations on Wednesday and lifted a shelter in place order for employees and their families, as the ceasefire between Israel and Iran appeared to hold.

The embassy urged continued caution and "increased personal security awareness -- including knowing the location of the nearest shelter in the event of a red alert as security incidents, such as mortar, rocket and missile fire and unmanned aircraft system intrusions, often take place without any warning."

Government employees and their families are still restricted from travel outside of the greater Tel Aviv, Jerusalem and Be'er Sheva areas, Wednesday's security notice said.

The embassy's previous security update on June 23 instructed all employees and their families to shelter in place "until further notice" due to the ongoing conflict with Iran.

President Donald Trump doubled down on his claim that Iranian nuclear sites were "completely destroyed" following U.S. strikes on Saturday.

In a social media post late Tuesday, he asserted that the media was trying to "demean one of the most successful military strikes in history."

An early intelligence assessment indicated that the strikes did not fully eliminate the country’s nuclear program and likely only set it back by months, according to two people familiar with an early intelligence assessment.

The report, which is classified, was produced by the Defense Intelligence Agency and U.S. Central Command. The findings could evolve as the Defense Department and the intelligence community collect more information.

-ABC News' Kelsey Walsh

Special Envoy to the Middle East Steve Witkoff suggested Tuesday an initial intelligence assessment of Iran's nuclear capabilities after U.S. strikes was leaked, calling such a move "treasonous."

“Well, it goes without saying that -- that leaking that type of information, whatever the information, whatever side it comes out on, is outrageous," Witkoff said, speaking to Fox News' Laura Ingraham. "It's -- it's treasonous. So it ought to be investigated."

The initial assessment by the U.S. Central Command and the Defense Intelligence Agency concluded that U.S. strikes on Iran's nuclear facilities did not completely destroy the county's nuclear program but likely set it back by a few months.

Witkoff also assured that the ceasefire between Israel and Iran is holding.

"The proof is in the pudding, no one's shooting at each other," he said. "It's over.”

When asked if Iran could resume its nuclear enrichment program within a matter of months, Witkoff said it’s “not even conceivable.”

-ABC News' Kelsey Walsh

New satellite images released by Maxar Technologies show damage at three nuclear-associated facilities in Iran following the U.S. airstrikes on June 22.

The photos over the Fordo fuel enrichment facility show craters along access roads leading to tunnel entrances, Maxar said.

Photos above the Isfahan site show damage from airstrikes to tunnel entrances, according to Maxar.

-ABC News' Kerem Inal