As for the "embassy" attack, I find it a bit odd there isn't more in the news about it. Some reports use the term "consulate", which to me sounds wrong. It should be "embassy". It definitely is a building next to the Iranian embassy, and could well be considered part of it, or not, which is my point above. I don't see any wall or enclosure around both. It's POSSIBLE it is an adjacent building the Iranians rent out that has no diplomatic status at al, and it's possible it's part of the embassy. The "news" is unclear to me, or equivocal, or confusing, or just wrong (which is not a shock).
It's not a headline item on any major news source I peruse. Most reports today are speculative about how iran will react, speculative meaning "Talking Heads are Guessing Again".
So, maybe it is, maybe it isn't, and maybe it doesn't matter much except legally, which also as noted doesn't really matter either.