aren’t there Iranians in there?
Yes, and this is really what this is about. Anyone keeping up with the news has read that Israel says an Iranian base in Syria is unacceptable... and that probably includes weaponry as well.
Israel has struck Syria fairly routinely and without a response and furthermore, of course, Syria gets a lot of Russian support in addition.
So, the Russians have made condemnations but they haven't acted on this either.