The Israeli airstrike on the Kata'ib Hezbollah militia, under the direct command of IRGC-QF General Qassem Soleimani, was originally attributed to the U.S.-led CJTF-OIR. Casualties are reportedly well beyond the numbers currently reported in corporate media.
The seriousness of this strike lies in the fact that the IAF flew a minimum 1,200 miles round trip to take out the Iranian-led militia convoy. Kata'ib Hezbollah has previously vowed to attack both U.S. and Israeli forces. Israel has now repeatedly struck Iranian military in Syria multiple times over several months without a serious response.
5 June 2018: Virtually all talk and attention in recent days is about U.S. President Donald Trump's scheduled summit meeting with North Korean (DPRK) dictator Kim Jong Un in Singapore six days from today. The meeting will focus on the de-nuclearization of North Korea or it will be over before it begins. So far so good according to everything coming from the White House.
Update 10 June 2018: The two fearsome-looking weapons seen above have been in the news since March of this year when they were declared combat ready in OSINT reporting. This is an Indication and Warning (I&W). It could also be an After Action Report (AAR).
The weapon is known as the Rafael SPICE 1000. SPICE is shorthand for Smart, Precise Impact, Cost Effective. The SPICE 1000 is a satellite and/or electro-optically guided stand-off weapon that will be, or has already been, carried on Israel's newly acquired F-35I Adir strike aircaft. SPICE 1000 is also carried externally on the F-15I Ra'am and F-16I Barak/Sufa (image above) strike aircraft of the IAF.
Carried and deployed from within the internal weapons bay of the F-35I Adir the enemy targets belonging to Iran or Syria would never know what had hit and destroyed them. Such has been the case in Syria recently when unknown aircraft and weapons created havoc in northern and central Syria primarily against Iranian targets.
Hence, the strong potential for this SITREP update being an AAR instead of an I&W report. And yes, the enemy never saw this package of 1,000 lbs of boom coming. Not only is the F-35I a stealth aircraft, but it could easily have flown its strike mission against Iranian targets in Syria from a position in the Eastern Mediterranean off the Lebanese or Cypriot coastlines. Surprise!