Iran attack: Everything we know so far on Tehran's drone and missile strike on Israel

Iran has launched an unprecedented drone and missile barrage against Israel - an attack Tehran has labelled as a retaliatory strike.

The move could trigger a major escalation between the countries as tensions in the Middle East remain inflamed over the war in Gaza.

Follow live updates of Iran's attack on Israel

Here's everything we know so far:

Why has Iran launched an attack?

Iran's Islamic Revolutionary Guard Corps (IRGC) said it was responding to an "attack on the consular section of the Iranian embassy in Damascus" on 1 April.

Two generals and seven members of the IRGC were killed in the strike, which Tehran blamed on Israel.

Israel has not publicly commented but has been on high alert since the airstrike.

Was it expected?

Iran has repeatedly threatened a response to the Damascus strike - despite warnings from the US against an attack on Israel.

US officials began warning on Friday that an attack from Iran was likely imminent.

Then, on Saturday, a number of countries in the region began shutting their airspace, ahead of the anticipated attack.

Following its launch on Saturday night, Rear Admiral Daniel Hagari also said Israel was "well prepared" for the attack.

What did Iran do?

More than 170 explosive drones and 120 ballistic missiles were launched by Iran, with "only a few" entering Israel and "99%" intercepted by its defence system, Mr Hagari said in a statement.

Some 30 cruise missiles were launched, 25 of which were intercepted outside Israel's borders, according to the IDF.

"Dozens of rockets" were then launched from Lebanon, striking the Nevatim Air Base, where there was only "minor damage caused to the infrastructure," Mr Hagari said.

There have been no reported fatalities, but "regretfully a 10-year-old girl was severely injured by shrapnel", he added.

Drones were seen flying from Iran, through Iraqi airspace and in the direction of Israel, two Iraqi security sources told Reuters.

The drones were each carrying 20kg of explosives, Amos Yadlin, a retired general in the Israeli air force, told Channel 12 TV.

The IDF said Israeli forces had "successfully intercepted" the majority of the launches with its air defence system - as well as with help from its strategic allies - before the drones and missiles reached Israel.

There were also launches from Iraq and Yemen, neither of which managed to land in Israel, the IDF said.

What has the response been?

Following the launch of the aerial attack, both Israeli Prime Minister Benjamin Netanyahu and US President Joe Biden held emergency meetings with their top officials.

In a statement following the meeting, Mr Biden reaffirmed the US's "ironclad" commitment to "Israel's security against threats from Iran and its proxies".

Early on Sunday morning, a senior Israeli source told Channel 12 TV that the country was planning a "significant response" to the Iranian drone salvo.

On Sunday morning, Mr Netanyahu tweeted saying: "We intercepted. We repelled. Together we will win."

Iran's foreign ministry said Tehran would "not hesitate" to take "further defensive measures" to "safeguard its legitimate interests against any military aggressions".

Rishi Sunak, the UK's prime minister, said he condemned "in the strongest terms the Iranian regime's reckless attack against Israel".

He was joined in his condemnation by Foreign Secretary Lord Cameron, Defence Secretary Grant Shapps, and Labour leader Sir Keir Starmer.

Saudi Arabia also called on all parties to exercise the "utmost levels" of restraint and to spare the region and its people the dangers of war, while UN secretary-general, Antonio Guterres also urged "maximum restraint".

Was the RAF involved in defending Israel?

Sky News understands that RAF planes were involved in the defence of Israel on Saturday evening, though they are thought to have been used in a support capacity, rather than in any direct action.

Mr Hagari said in his statement that Britain, the US and France took supportive action.

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Mr Shapps said in a statement that additional RAF jets and air refuelling tankers had also been deployed to the region to "bolster" Operation Shader - the UK's existing counter-IS operation in Iraq and Syria.

"In addition, the jets will intercept airborne attacks within range of our existing missions," he said.

"I strongly condemn the senseless airborne attack that Iran has launched on Israel. It serves no benefit other than to further undermine regional security."