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.
'The real test is results': Blinken reacts to Israel border crossing announcements
U.S. Secretary of State Antony Blinken was asked about the announcement from Israeli Prime Minister Benjamin Netanyahu's office's announcement overnight that additional crossings into Gaza would be opened up for aid to enter.
He said the U.S. "welcomed" the development but that "the real test is results, and that's what we're looking to see in the coming days, the coming weeks."
"Is the aid effectively reaching the people who need it throughout Gaza?" he said. "Do we have a much better system for deconfliction and coordination so that the humanitarian workers, the folks who are delivering the aid, can do it safely and securely? All of these things are critical."
Blinken said these aims would be measured by clear metrics "like the number of trucks that are actually getting in on a sustained basis," and the aid making it to those in need through the enclave — "including critically northern Gaza."
He said the administration would be closely watching to see if other measurements were reversed, including "the fact that almost 100% of the population is acutely food insecure" as well as indicators of potential famine.
"So really, the proof is in the results," he said.
ABC News' Shannon Crawford
Partner of killed aid worker calls for answers: 'We need the truth of what happened'
The partner of one of the seven World Central Kitchen aid workers killed in an Israeli air strike in Gaza this week is pleading for answers into the deadly attack.
"We need some answers," Sandy Leclerc, the partner of Jacob Flickinger, a dual U.S.-Canadian citizen, told ABC News on Thursday in her first television interview since the attack. "We need the truth of what happened because this situation is so unclear."
"Please Mr. Biden, give us the truth of what happened," she asked of President Joe Biden as she spoke with ABC News correspondent Phil Lipof.
Israel to open another border crossing point after Biden-Netanyahu call: Official
Israel has decided to open another border crossing point -- the Erez checkpoint -- to allow humanitarian aid to cross into Gaza, according to an Israeli official.
The decision comes after Israeli Prime Minister Benjamin Netanyahu and U.S. President Joe Biden spoke by phone earlier Thursday.
"This increased aid will prevent a humanitarian crisis and is necessary to ensure the continuation of the fighting and to achieve the goals of the war," the official said in a statement. "In light of this, Israel will allow the temporary delivery of humanitarian aid through Ashdod (port) and the Erez checkpoint and will increase the Jordanian aid coming in through Kerem Shalom."
-ABC News' Dana Savir
WCK airstrike won't affect emergency pier mission: Pentagon
The U.S. military's emergency pier system to get humanitarian aid into Gaza is still en route, Pentagon spokesperson Maj. Gen. Pat Ryder told reporters Thursday.
Ryder said that USAID continues to work with organizations to finalize a distribution plan for the aid once it's transferred by the system -- known as JLOTS -- to shore. He also acknowledged that the deadly Israeli strike that killed seven humanitarian aid workers this week "certainly doesn't make that job easier."
He added that it "has not deterred us from continuing to work with groups and NGOs to come up with solutions."
Ryder confirmed that Israel has committed to providing security on shore for the pier and port system.
"I know Israel's investigating in terms of the strike on World Central Kitchen and we trust that Israel will provide the security that we need on the shore," he said.
Ryder said the system is expected to be operational by the end of April or early May.
"We're not changing the mission. We've been tasked to provide a temporary pier. Everything is on track on schedule at this point," he said.
-ABC News' Luis Martinez
US officials think there will be 400 to 500 drones, missiles launched
A senior U.S. official told ABC News they now think there will be anywhere from 400 to 500 drones and missiles launched at Israel from Iraq, Syria, southern Lebanon and the Houthis, but that the bulk will be launched from Iran.
The drones are the same kind used in Ukraine.