The senior Iranian figures killed in attack by US and Israel

A number of senior figures in Iran are known to have been killed in Saturday's strikes on Iran.

They include:

• Ayatollah Ali Khamenei, Iran's supreme leader, who was killed on Saturday morning at his office
• Iranian television reports that the country's armed forces chief of staff Abdolrahim Mousavi was killed in airstrikes
• Tehran has also confirmed the death of the commander of the Revolutionary Guards, General Mohammad Pakpour
• State media has also reported that Khamenei's daughter, son-in-law and grandchild were killed in the attack
• An intelligence source and military source has told CBS News that overall around 40 Iranian officials were killed in the strikes

Explosions and sirens have rung out across the Middle East today, as Iran retaliates for the Israeli-US attack and the death of its supreme leader, Ayatollah Ali Khamenei.

Here's what to know:

US-Israeli strikes on Iran

These strikes hit 24 of Iran's 31 provinces, according to Iranian Red Crescent spokesperson Mojtaba Khaledi. BBC Verify has analysed satellite footage showing significant damage to the Leadership House compound in Tehran, where the Iranian supreme leader's office was located.

Iranian state media confirmed in the early hours of Sunday that Ayatollah Ali Khamenei was killed was killed at his office.

Across the country, 201 people have been killed, including at least 108 in an explosion at a girl's school in southern Iran.

Iran's retaliatory strikes

Israel has been targeted by waves of missile and drone attacks, and an apartment building in Tel Aviv was destroyed. At least one woman has been killed in strikes on Israel, and 120 people are injured, emergency services say.

Iran's elite Revolutionary Guards have targeted the US Fifth Fleet in Bahrain, alongside other US bases in the Gulf region.

Strikes have also been reported in Dubai, Doha and Kuwait - In Dubai, four people have been injured following an incident at Dubai International Airport, one of the world's busiest aviation hubs. Additional strikes on Bahrain International Airport have also been reported to the BBC by an eyewitness.

US President Donald Trump has just warned Iran not to strike back at the US and Israel.

Writing on his Truth Social platform, he said, "Iran just stated that they are going to hit very hard today, harder than they have ever hit before. THEY BETTER NOT DO THAT, HOWEVER, BECAUSE IF THEY DO, WE WILL HIT THEM WITH A FORCE THAT HAS NEVER BEEN SEEN BEFORE!"

His statement comes after the the Islamic Revolutionary Guard Corps warned it would attack US bases and Israel in retaliation for Khamenei's death.

"The most devastating offensive operation in the history of the Islamic Republic of Iran's armed forces will begin toward the occupied territories and American terrorist bases in just moments," it said a few hours ago.