Israel-Gaza updates: 22, including 18 children, reported dead in Rafah strikes
The IDF says it struck military targets of terrorist organizations in Gaza.
Israel launched a retaliatory strike against Iran early Friday morning local time, a senior U.S. official told ABC News.
The strike followed Iran's attack on Saturday, when Tehran sent a volley of more than 300 drones and missiles toward targets in Israel, according to Israeli military officials. All but a few were intercepted by Israel and its allies, including the United States, officials said.
Iran's weekend attack came more than six months after Hamas terrorists invaded Israel on Oct. 7, after which the Israeli military began its bombardment of Gaza.
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What to know about Iran's attack on Israel
Israeli officials said the country's Iron Dome defense system endured a big test from Iran's attack on Saturday, intercepting 99% of the 300 "threats of various types" thrown at it.
Iran's Islamic Revolutionary Guard Corps, according to Israel Defense Forces spokesperson Daniel Hagari, launched 170 unmanned aerial vehicles (UAVs), more than 120 ballistic missiles and more than 30 cruise missiles in the attack.
Hagari said "99% of the threats launched towards Israeli territory were intercepted -- a very significant strategic achievement."
Hagari said the attack resulted in only one known Israeli casualty, a 7-year-old girl who was severely injured when she was struck by shrapnel apparently from an intercepted missile.
No damage to Iran’s nuclear sites after Israeli strike: IAEA
Iran's nuclear sites have not been damaged by Israel's strike on Iran early Friday morning, according to the International Atomic Energy Agency (IAEA).
In a statement released on social media, IAEA chief Rafael Grossi says he "continues to call for extreme restraint from everybody and reiterates that nuclear facilities should never be a target in military conflicts."
Flight operations resume in Iran: State media
After suspending flights at several airports following reports of an explosion in Iran, Iranian state media said early Friday normal operations have resumed.
-ABC News' Will Gretsky
Flights to Tehran, Isfahan and Shiraz suspended after reports of explosion in Iran: Iranian state media
Flights to Tehran, Isfahan and Shiraz have been suspended following reports an explosion was heard in the city of Qahjavaristan, Iranian state media reported.
The city of Qahjavaristan is located near Isfahan Airport and the 8th Shekhari Base of the Army Air Force in the northwest of Isfahan.
-ABC News' Will Gretsky
Israeli missiles have hit a site in Iran
A U.S. official confirmed to ABC News Israeli missiles have hit a site in Iran. The official could not confirm whether Syria and Iraq sites were hit as well.
-ABC News' Martha Raddatz
US effort to build humanitarian pier off Gaza expected to top $180M
President Joe Biden's plan to use the military to build a giant pier off the coast of Gaza to deliver food, water and medicine will cost at least $180 million and could top $200 million, ABC News has learned.
The price tag was described by two people familiar with the initial estimate, which has not been released by U.S. Central Command.
The price tag is expected to fluctuate as U.S. officials scramble to finalize key details on the project, including which humanitarian organizations and foreign governments are willing to help carry the shipments to shore and distribute them.
The floating dock is expected to be nearly the size of a football field -- about 97 feet wide and 270 feet long -- stationed about 3 miles offshore. Container ships would screen their cargo in Cyprus before taking it to the floating dock and unloading it. From there, the aid would be moved aboard small Army ferries that would transport it to an 1,800-foot "trident" pier that connects to shore.
Officials also continue to discuss how to protect the service members who will be 3 miles offshore, where Hamas is believed to still operate.
The project -- which triggered the deployment of six Army and Navy ships and will involve some 1,000 U.S. military troops -- is on track to become operational in early May, enabling the delivery of some 2 million meals per day.
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-ABC News’ Anne Flaherty and Luis Martinez