Nothing official from Iran.
This could mean the IRG is rogue on this operation and Tehran may not be in control? Certainly there is nothing for the state of Iran to gain militarily or politically.
But, I can see how this could help the Republican Guard domestically.
That is what happened when Flight 800 was shot down. It was retaliation for the downing of Iran Air flight 655, but it was done without the expressed approval of Tehran.
Bill Clinton ordered a coverup. Unfortunately for him, too many people had to be ordered silent for it to stay covered up.