Iran's supreme leader, Ayatollah Ali Khamenei, says Israel's air strikes on the country on Friday night should "neither be downplayed nor exaggerated"
Israeli Prime Minister Benjamin Netanyahu says the attack, following a barrage of Iranian missiles fired at Israel on 1 October, was "strong, precise and achieved all its objectives"
The Israeli military says four soldiers have been killed in southern Lebanon, where Israel has been battling Iran-backed Hezbollah
An Israeli strike in Sidon has killed eight people, Lebanon's health ministry says
Analysis: Iran faces hard choices between risks of escalation or looking weak, writes Â鶹¹ÙÍøÊ×Ò³Èë¿Ú's International editor Jeremy Bowen
The Israeli military announced earlier this morning that four of its soldiers were killed yesterday in southern Lebanon, where its forces have been fighting Hezbollah.
No further details were provided about what happened or where exactly in southern Lebanon the men were killed.
Image source, AFPIsraeli soldiers check a gate as they patrol along the Israel-Gaza border area on 21 October
The heads of the US and Israeli spy agencies - the CIA and Mossad - are due to meet with the Qatari prime minister today in Doha, according to the Reuters news agency, which cites an official who has been briefed on the talks.
Qatar has been acting as a mediator between Israel and Hamas for ceasefire and hostage-release talks and the US and Egypt have also been leading negotiations to end the war.
The talks follow the Israeli prime minister's office announcing earlier this week that the head of Mossad had been directed to head to Doha, following "meetings that were held in Cairo".
This is an apparent reference to reports that an Egyptian delegation met with Hamas leaders there as part of efforts to resume negotiations.
An Israeli strike in Sidon has killed eight people, the Lebanese health ministry says in an update to their earlier reports.
Our correspondent, Nawal Al-Maghafi, said there had been no evacuation notice and says a source confirmed that the strike hit one floor of an apartment block and two vehicles outside.
According to the latest statement from the health ministry 25 people have also been injured.
Image source, ReutersWe have some more now from Israel's defence ministry, who say Yoav Gallant briefed US Defence Secretary Lloyd Austin on Israel's strikes on Iran, Reuters reports.
The Israeli defence minister discussed initial assessments of strikes against missile manufacturing facilities, surface-to-air missile arrays and Iranian aerial capabilities, his office is reported as saying in a statement.
"Minister Gallant also discussed the strategic opportunities that have risen as a result of operational achievements, in both the northern and southern arenas," the statement says, in an apparent reference to Lebanon and Gaza.
As we've been reporting, Iran's supreme leader says Israeli air strikes which hit Tehran and other areas on Friday night should not be "downplayed".
Now, the Iranian Foreign Minister Syed Abbas Araghchi has said in a letter to the UN Secretary General that Iran reserves the right to respond to Israel's "criminal aggression".
The Iranian foreign ministry says he wrote to Antonio Guterres calling for a meeting of the Security Council with the intention of condemning recent Israeli strikes on Iran.
Nawal Al-Maghafi
Â鶹¹ÙÍøÊ×Ò³Èë¿Ú International Correspondent
From the car park of Sidon's main hospital, Hammond, we heard a loud thud, the sound of an airstrike landing around 600m away from us in the city's main junction - Haret Saidah.
With no evacuation notice, it was completely unexpected, attacks haven’t been frequent in this part of Lebanon, the last one was reported on the 15th of October.
Within minutes the sound of ambulances could be heard coming towards us to bring in the injured, so far five have been confirmed dead and 11 injured, according to the Lebanese ministry of health.
A source has confirmed the strike hit one floor of an apartment block and two vehicles outside it - the target remains unknown.
Image source, ReutersSmoke rises after an Israeli strike in Sidon
We're hearing now that at least two people have been killed and 11 wounded after an Israeli strike on the Lebanese city of Sidon, the country's health ministry says.
We'll bring you more on this as we get it.
Sebastian Usher
Reporting from Jerusalem
At a ceremony marking the Jewish calendar anniversary of the 7 October attack on Israel, Netanyahu said that the airstrikes on Iran were precise and powerful.
He also addressed the Iranian people, saying that Israel's fight was not with them.
The impact of the attack is still being assessed with satellite imagery pointing to Parchin, a major military complex near Tehran, having been hit.
The reaction from Iran remains relatively muted – the country's Supreme Leader Ayatollah Ali Khamenei has said that Tehran must correct what he called Israel's "miscalculation".
He said that any reaction must be decided by what is in Iran's best interests.
In the wake of the attack, a new effort to restart negotiations on a ceasefire and the release of hostages in Gaza is continuing, with the heads of Mossad and the CIA due to meet the prime minister of Qatar – which has been a key mediator.
Israel's defence minister Yoav Gallant has said that freeing the hostages will demand painful compromises.
Image source, ReutersIsraeli Prime Minister Benjamin Netanyahu has been speaking today about the Israeli strikes carried out against Iran on Friday night.
He says the Israeli attack was "precise and powerful" and achieved all its objectives.
Israel's Defence Minister Yoav Gallant also says that not all of Israel's objectives can be achieved militarily, warning "painful concessions" will be needed to secure the hostages in still held in Gaza, AFP reports.
He also spoke about how Israeli military operations have weakened the abilities of Hamas in Gaza and Hezbollah in Lebanon to act as Iranian proxies against Israel.
Iran's supreme leader, Ali Khamenei, says the Israeli air strikes which hit Tehran and other areas on Friday night must "neither be downplayed nor exaggerated".
The Iranian army says four soldiers were killed in the strikes which the Israel Defense Forces (IDF) said were "precise strikes on military targets".
Khamenei said that Israel made a "miscalculation" about Iran, which Tehran must "correct", the official IRNA news agency reported.
"They do not know Iran" and "they have not yet correctly understood the power, capability, initiative and will of the Iranian nation. We must make them understand," he added.
Stay with us for the latest updates throughout the day.