The Israel Defense Forces conducted what it called "precise strikes on military targets" in Iran on Friday in response to the Iranian missile strikes earlier this month.
Meanwhile, Israeli airstrikes and ground fighting continued in Gaza -- particularly in the north of the strip -- and in Lebanon, with renewed Israeli attacks on Beirut.
Austin: 'Hard to say' what Israeli retaliatory strike on Iran will look like
U.S. Defense Secretary Lloyd Austin told reporters while traveling to Ukraine on Monday that it's "hard to say" what an Israeli retaliatory strike on Iran will look like, when asked whether the response should be proportional.
"That's an Israeli decision," he said. "Whether or not the Israelis believe [it] is proportional and [how] the Iranians perceive it, I mean, those are maybe two different things."
Austin told reporters that the U.S. is "going to continue to do everything we can" to get both parties to "begin to de-escalate."
-ABC News' Luis Martinez
Oct 21, 2024, 8:25 AM EDT
Blinken to visit Israel in Middle East tour
Secretary of State Antony Blinken will begin a tour of Israel and other Middle Eastern nations on Monday in a bid to inject new life into stalled cease-fire and hostage release negotiations in Gaza, the State Department said.
Blinken "will discuss the importance of bringing the war in Gaza to an end, securing the release of all hostages and alleviating the suffering of the Palestinian people," the State Department notice said.
Secretary of State Antony Blinken speaks at a news conference during the Association of Southeast Asian Nations (ASEAN) Summit in Vientiane, Laos, on Oct. 11, 2024.
Tang Chhin Sothy/AP
"He will continue discussions on post-conflict period planning and emphasize the need to chart a new path forward that enables Palestinians to rebuild their lives and realize their aspirations free from Hamas' tyranny," the statement said.
Blinken will also "underscore that additional food, medicine and other humanitarian aid must be delivered to civilians in Gaza," it continued.
The situation in Lebanon -- where Israel is continuing an intense air and ground campaign and Hezbollah is still firing across the shared border -- will also be a topic of discussion, the State Department said.
Blinken will continue pursuit of a "diplomatic resolution" that "allows civilians on both sides" of the border to return to their homes, the statement said.
-ABC News' Cindy Smith
Oct 21, 2024, 5:55 AM EDT
'Beirut in flames' after night of airstrikes, foreign minister says
"Beirut in flames," Israeli Foreign Minister Israel Katz wrote on X on Monday following an intense night of airstrikes on the Lebanese capital.
Flames and smoke rise from Israeli airstrikes on Dahiya, a southern suburb of Beirut, Lebanon, on Oct. 20, 2024.
Hussein Malla/AP
"A wide-scale Israeli attack targeted Hezbollah's financial infrastructure in Beirut and across Lebanon last night," Katz said.
"Massive fires were seen above Beirut as over 15 buildings were struck following evacuation warnings to residents," the foreign minister wrote.
"Hezbollah has paid and will continue to pay a heavy price for its attacks on northern Israel and its rocket fire. We will keep striking the Iranian proxy until it collapses."
-ABC News' Guy Davies
Oct 21, 2024, 2:20 AM EDT
IDF claims 'dozens' of strikes on Hezbollah financial targets
Israel Defense Forces warplanes launched "a series of targeted, intelligence-based strikes against dozens of facilities and sites used by the Hezbollah terrorist organization to finance its terrorist activities," the IDF said in a Monday post to X.
Smoke and flames rise from areas targeted by a Israeli airstrikes in the southern suburbs of Beirut, Lebanon, on Oct. 20, 2024.
Fadel Itani/AFP via Getty Images
The Sunday night strikes hit targets in Beirut, southern Lebanon and elsewhere "deep within" the country, the IDF added.
The IDF said the targets were linked to the Al-Qard Al-Hassan Association, which Israel has accused of acting as a key financier of Hezbollah activities.