Iran has raised the Red Banner of Retaliation over the dome of Jamkaran Mosque in Qom city, which amounts to a declaration of war.
What caused the raising of the Red Banner is yet to be said.
The last time the Red Banner was raised was when Qassem Suleimani was assassinated in 2020. After that banner was raised, Iran fired missiles which hit a US Base in the region, injuring many US military personnel.
Whatever the present issue may be, Saudi Arabia notified its US Military contacts they expect what they call an "imminent" attack against Saudi Arabia by Iran. They are not certain if the attack will be by missiles, or by Iranian Drones.
US and Saudi air defenses are now on high alert.