Two Iranian Air Force F-4 Phantoms from Bushehr Air Base, had intruded into Saudi airspace, setting up for an attack on oil tankers.

The planes were tracked by a United States Air Force E-3 Sentry AEW&C aircraft, which directed two patrolling Saudi F-15 Eagles armed with AIM-9 Sidewinder missiles to intercept the Iranians.

[1] The Saudis shot down one Iranian Phantom, killing 1st Lts Homayoun Hekmati & weapon systems officer Seyed Sirous Karimi.

The second Iranian F-4 was damaged, and made an emergency landing at Kish Airport.

In response, the Royal Saudi Air Force scrambled 11 additional F-15s.