Israel-Gaza-Lebanon updates: Iranian president responds to Israel's retaliatory attacks
Israel Defense Forces attacked military targets in Iran Saturday.
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.
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Israel says strikes on military targets in Iran completed
The Israel Defense Forces said it has completed "precise and targeted strikes" against military targets in Iran -- a few hours after the military action began.
"The retaliatory strike has been completed and the mission was fulfilled," the Israeli military said in a statement.
The IDF said Israeli aircraft targeted the manufacturing facilities used to produce the missiles that Iran has fired toward Israel twice this year.
"Simultaneously, the IDF struck surface-to-air missile arrays and additional Iranian aerial capabilities, that were intended to restrict Israel's aerial freedom of operation in Iran," the IDF said in a statement.
Iran fired about 200 ballistic missiles toward Israel on Oct. 1 in retaliation for the killing of Hezbollah leader Hassan Nasrallah. Iran sent an earlier barrage of missiles in April.
Missile and drone storage, production facilities targeted: Source
Missile and drone storage facilities, weapon production sites and air defense systems were among the targets of the Israeli strikes, according to an official Israeli source with knowledge of the operation.
Military bases were targeted in the Israeli strikes, Iran state TV said.
"The initial investigations and follow-ups of Fars journalists show that several military bases in the west and southwest of Tehran were the targets" of Israel's attack, the Fars News Agency said.
Tehran refinery is active and the area around it is calm, the semi-official Mehr News Agency reported.
Iranian authorities have yet to comment on the strikes.
-ABC News' Somayeh Malekian
Sound heard around Tehran related to air defense
A sound heard around Tehran was related to air defense, the Public Relations of Tehran Province Air Defense said.
Iran state TV reported that six explosions were heard around Tehran at about 2:10 a.m. local time.
Israeli attack ongoing, expected to last 1 night: Source
Israel's attack on Iran is ongoing and is expected to be a one-night affair, according to a source with direct knowledge.
No Israeli casualties and no damage to Israeli warplanes have been reported so far, the source said.