Alex Ritson

Reza Pahlavi is the son of Iran's last shah and is a leading critic of the Iranian regime.

He's currently in exile in the US and addressed the Iranian people directly.

Now that the Islamic Republic is collapsing, my message to the country's military, police and security forces is clear.

You've sworn an oath to protect Iran and the Iranian people, not the Islamic Republic and its leaders.

Your duty is to defend the people, not a regime that's taken our homeland hostage through repression and crime.

Join the people and help bring about a stable and secure transition.

Otherwise, you will go down with Khamenei's sinking ship and his regime.

To find out more about the reaction inside Iran, I spoke to Gia Gol from BBC Persian.

This is a joint operation between the US and Israel.

The US will have access, presumably, to the intelligence of Mossad, the Israeli intelligence agency.

The US has indicated this is about regime change.

What are the chances that the Ayatollah will have been hit by any of these strikes?

And the Mossad, of course, do have extraordinarily good contacts inside Iran, don't they?

GR Gol from BBC Persian.

Our Middle East analyst Sebastian Usher gave us his assessment of the unfolding situation.

We've just had the Israeli military saying that it launched hundreds of attacks on targets in Iran.

What we don't know from Iran at the moment, there's lots of rumours obviously flying around, lots of videos.

of smoke rising from various areas, particularly in the capital, whether members of the leadership, the political, the military leadership, have been targeted successfully.

There does seem to be a sense that that was what the Israeli mission may have been to some extent.

We know that the US is also very much trying to target the offensive capability of Iran in terms of its ballistic missiles, but we're seeing...