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.
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.
Starting Saturday night, the Jordanian airspace will be temporarily closed to all incoming, departing and transiting aircraft, Jordan's Civil Aviation Regulatory Authority said in a statement.
Hamas says it has handed Egyptian and Qatari mediators its response to an Israeli proposal it received at talks in Cairo last week, while reiterating its key demands of a permanent cease-fire, a withdrawal of Israeli forces from Gaza, the return of displaced people to their areas and places of residence and intensifying the entry of relief and aid.
"We also confirm our readiness to enter a serious and real prisoner exchange deal between the two parties," Hamas said in a statement.
-ABC News' Edward Szekeres
Hezbollah says it attacked Iron Dome platforms "with drones" hitting "the targets accurately."
Earlier Saturday, the Israel Defense Forces said a number of anti-tank missiles crossed from Lebanon, as well as Hezbollah unmanned aerial vehicles.
The IDF also said it struck a series of Hezbollah military compounds on Saturday.
The Israel Defense Forces announced changes to the "Home Front Command's defensive guidelines" as of 11 p.m. Israel time Saturday ahead of an anticipated Iranian attack that could be imminent.
As part of the changes, schools and educational institutions will remain closed across Israel, "prohibiting educational activities," -- not only because the Passover vacation is starting. Gatherings will be limited to 1,000 people in green areas.
-ABC News' Edward Szekeres
